45190257 has 8 divisors (see below), whose sum is σ = 68861376. Its totient is φ = 25822992.

The previous prime is 45190253. The next prime is 45190261. The reversal of 45190257 is 75209154.

It is an interprime number because it is at equal distance from previous prime (45190253) and next prime (45190261).

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

It is not a de Polignac number, because 45190257 - 2² = 45190253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45190253) 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, 1075938 + ... + 1075979.

It is an arithmetic number, because the mean of its divisors is an integer number (8607672).

Almost surely, 2^45190257 is an apocalyptic number.

It is an amenable number.

45190257 is a deficient number, since it is larger than the sum of its proper divisors (23671119).

45190257 is a wasteful number, since it uses less digits than its factorization.

45190257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151927.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 45190257 is about 6722.3698946131. The cubic root of 45190257 is about 356.1899025741.

The spelling of 45190257 in words is "forty-five million, one hundred ninety thousand, two hundred fifty-seven".