45154881 has 16 divisors (see below), whose sum is σ = 67000320. Its totient is φ = 30056400.

The previous prime is 45154877. The next prime is 45154909. The reversal of 45154881 is 18845154.

It is not a de Polignac number, because 45154881 - 2² = 45154877 is a prime.

It is a super-2 number, since 2×45154881² = 4077926556248322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45154831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30351 + ... + 31803.

It is an arithmetic number, because the mean of its divisors is an integer number (4187520).

Almost surely, 2^45154881 is an apocalyptic number.

It is an amenable number.

45154881 is a deficient number, since it is larger than the sum of its proper divisors (21845439).

45154881 is a wasteful number, since it uses less digits than its factorization.

45154881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613 (or 2607 counting only the distinct ones).

The product of its digits is 25600, while the sum is 36.

The square root of 45154881 is about 6719.7381645418. The cubic root of 45154881 is about 356.0969336890.

The spelling of 45154881 in words is "forty-five million, one hundred fifty-four thousand, eight hundred eighty-one".