70312105 has 4 divisors (see below), whose sum is σ = 84374532. Its totient is φ = 56249680.

The previous prime is 70312097. The next prime is 70312117. The reversal of 70312105 is 50121307.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50121307 = 2221 ⋅22567.

It can be written as a sum of positive squares in 2 ways, for example, as 10419984 + 59892121 = 3228^2 + 7739^2 .

It is not a de Polignac number, because 70312105 - 2³ = 70312097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7031206 + ... + 7031215.

It is an arithmetic number, because the mean of its divisors is an integer number (21093633).

Almost surely, 2^70312105 is an apocalyptic number.

It is an amenable number.

70312105 is a deficient number, since it is larger than the sum of its proper divisors (14062427).

70312105 is a wasteful number, since it uses less digits than its factorization.

70312105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14062426.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 70312105 is about 8385.2313623418. The cubic root of 70312105 is about 412.7401332148.

The spelling of 70312105 in words is "seventy million, three hundred twelve thousand, one hundred five".