46145257 has 4 divisors (see below), whose sum is σ = 46927440. Its totient is φ = 45363076.

The previous prime is 46145251. The next prime is 46145269. The reversal of 46145257 is 75254164.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46145257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46145251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391003 + ... + 391120.

It is an arithmetic number, because the mean of its divisors is an integer number (11731860).

Almost surely, 2^46145257 is an apocalyptic number.

It is an amenable number.

46145257 is a deficient number, since it is larger than the sum of its proper divisors (782183).

46145257 is an equidigital number, since it uses as much as digits as its factorization.

46145257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782182.

The product of its digits is 33600, while the sum is 34.

The square root of 46145257 is about 6793.0300308478. The cubic root of 46145257 is about 358.6815377620.

The spelling of 46145257 in words is "forty-six million, one hundred forty-five thousand, two hundred fifty-seven".