70512165 has 12 divisors (see below), whose sum is σ = 122221164. Its totient is φ = 37606464.

The previous prime is 70512149. The next prime is 70512199. The reversal of 70512165 is 56121507.

It can be written as a sum of positive squares in 2 ways, for example, as 54375876 + 16136289 = 7374^2 + 4017^2 .

It is not a de Polignac number, because 70512165 - 2⁴ = 70512149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 783424 + ... + 783513.

It is an arithmetic number, because the mean of its divisors is an integer number (10185097).

Almost surely, 2^70512165 is an apocalyptic number.

It is an amenable number.

70512165 is a deficient number, since it is larger than the sum of its proper divisors (51708999).

70512165 is a wasteful number, since it uses less digits than its factorization.

70512165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566948 (or 1566945 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 70512165 is about 8397.1521958340. The cubic root of 70512165 is about 413.1312209203.

It can be divided in two parts, 7051 and 2165, that added together give a square (9216 = 96²).

The spelling of 70512165 in words is "seventy million, five hundred twelve thousand, one hundred sixty-five".