772161115 has 16 divisors (see below), whose sum is σ = 1012170240. Its totient is φ = 560826720.

The previous prime is 772161109. The next prime is 772161127. The reversal of 772161115 is 511161277.

It is a happy number.

772161115 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 772161115 - 2¹⁵ = 772128347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34366 + ... + 52204.

It is an arithmetic number, because the mean of its divisors is an integer number (63260640).

Almost surely, 2^772161115 is an apocalyptic number.

772161115 is a deficient number, since it is larger than the sum of its proper divisors (240009125).

772161115 is a wasteful number, since it uses less digits than its factorization.

772161115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18642.

The product of its digits is 2940, while the sum is 31.

The square root of 772161115 is about 27787.7871555113. The cubic root of 772161115 is about 917.4223352654.

The spelling of 772161115 in words is "seven hundred seventy-two million, one hundred sixty-one thousand, one hundred fifteen".