45188457 has 8 divisors (see below), whose sum is σ = 60804480. Its totient is φ = 29849040.

The previous prime is 45188449. The next prime is 45188459. The reversal of 45188457 is 75488154.

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

It is not a de Polignac number, because 45188457 - 2³ = 45188449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45188459) 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, 68769 + ... + 69422.

It is an arithmetic number, because the mean of its divisors is an integer number (7600560).

Almost surely, 2^45188457 is an apocalyptic number.

It is an amenable number.

45188457 is a deficient number, since it is larger than the sum of its proper divisors (15616023).

45188457 is a wasteful number, since it uses less digits than its factorization.

45188457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138303.

The product of its digits is 179200, while the sum is 42.

The square root of 45188457 is about 6722.2360119234. The cubic root of 45188457 is about 356.1851733073.

The spelling of 45188457 in words is "forty-five million, one hundred eighty-eight thousand, four hundred fifty-seven".