70506165 has 32 divisors (see below), whose sum is σ = 115986816. Its totient is φ = 36558080.

The previous prime is 70506143. The next prime is 70506167. The reversal of 70506165 is 56160507.

It is not a de Polignac number, because 70506165 - 2⁹ = 70505653 is a prime.

It is a super-2 number, since 2×70506165² = 9942238606014450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70506167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103807 + ... + 104483.

It is an arithmetic number, because the mean of its divisors is an integer number (3624588).

Almost surely, 2^70506165 is an apocalyptic number.

It is an amenable number.

70506165 is a deficient number, since it is larger than the sum of its proper divisors (45480651).

70506165 is a wasteful number, since it uses less digits than its factorization.

70506165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 70506165 is about 8396.7949242553. The cubic root of 70506165 is about 413.1195025753.

The spelling of 70506165 in words is "seventy million, five hundred six thousand, one hundred sixty-five".