45045481 has 8 divisors (see below), whose sum is σ = 49056840. Its totient is φ = 41112192.

The previous prime is 45045479. The next prime is 45045487. The reversal of 45045481 is 18454054.

It can be written as a sum of positive squares in 4 ways, for example, as 5103081 + 39942400 = 2259^2 + 6320^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45045481 - 2¹ = 45045479 is a prime.

It is a super-2 number, since 2×45045481² = 4058190717042722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45045487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18310 + ... + 20623.

It is an arithmetic number, because the mean of its divisors is an integer number (6132105).

Almost surely, 2^45045481 is an apocalyptic number.

It is an amenable number.

45045481 is a deficient number, since it is larger than the sum of its proper divisors (4011359).

45045481 is a wasteful number, since it uses less digits than its factorization.

45045481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39035.

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 45045481 is about 6711.5930299743. The cubic root of 45045481 is about 355.8091205193.

The spelling of 45045481 in words is "forty-five million, forty-five thousand, four hundred eighty-one".