70313057 has 4 divisors (see below), whose sum is σ = 70539456. Its totient is φ = 70086660.

The previous prime is 70313051. The next prime is 70313063. The reversal of 70313057 is 75031307.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75031307 = 13 ⋅5771639.

It is an interprime number because it is at equal distance from previous prime (70313051) and next prime (70313063).

It is a cyclic number.

It is not a de Polignac number, because 70313057 - 2⁶ = 70312993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70313051) 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, 112733 + ... + 113354.

It is an arithmetic number, because the mean of its divisors is an integer number (17634864).

Almost surely, 2^70313057 is an apocalyptic number.

It is an amenable number.

70313057 is a deficient number, since it is larger than the sum of its proper divisors (226399).

70313057 is a wasteful number, since it uses less digits than its factorization.

70313057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226398.

The product of its (nonzero) digits is 2205, while the sum is 26.

The square root of 70313057 is about 8385.2881286215. The cubic root of 70313057 is about 412.7419959895.

The spelling of 70313057 in words is "seventy million, three hundred thirteen thousand, fifty-seven".