45345231 has 16 divisors (see below), whose sum is σ = 67468800. Its totient is φ = 30099384.

The previous prime is 45345197. The next prime is 45345247. The reversal of 45345231 is 13254354.

It is not a de Polignac number, because 45345231 - 2¹¹ = 45343183 is a prime.

It is a super-2 number, since 2×45345231² = 4112379948886722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 45345195 and 45345204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45345331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2940 + ... + 9966.

It is an arithmetic number, because the mean of its divisors is an integer number (4216800).

Almost surely, 2^45345231 is an apocalyptic number.

45345231 is a deficient number, since it is larger than the sum of its proper divisors (22123569).

45345231 is a wasteful number, since it uses less digits than its factorization.

45345231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7275 (or 7269 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 45345231 is about 6733.8867676848. The cubic root of 45345231 is about 356.5966067105.

Adding to 45345231 its reverse (13254354), we get a palindrome (58599585).

The spelling of 45345231 in words is "forty-five million, three hundred forty-five thousand, two hundred thirty-one".