45400545 has 12 divisors (see below), whose sum is σ = 78694356. Its totient is φ = 24213600.

The previous prime is 45400541. The next prime is 45400549. The reversal of 45400545 is 54500454.

It is an interprime number because it is at equal distance from previous prime (45400541) and next prime (45400549).

It can be written as a sum of positive squares in 2 ways, for example, as 14130081 + 31270464 = 3759^2 + 5592^2 .

It is not a de Polignac number, because 45400545 - 2² = 45400541 is a prime.

It is a super-2 number, since 2×45400545² = 4122418972594050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45400541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 504406 + ... + 504495.

It is an arithmetic number, because the mean of its divisors is an integer number (6557863).

Almost surely, 2^45400545 is an apocalyptic number.

45400545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45400545 is a deficient number, since it is larger than the sum of its proper divisors (33293811).

45400545 is a wasteful number, since it uses less digits than its factorization.

45400545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008912 (or 1008909 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 45400545 is about 6737.9926536024. The cubic root of 45400545 is about 356.7415449199.

Adding to 45400545 its reverse (54500454), we get a palindrome (99900999).

Subtracting 45400545 from its reverse (54500454), we obtain a palindrome (9099909).

The spelling of 45400545 in words is "forty-five million, four hundred thousand, five hundred forty-five".