772155 has 12 divisors (see below), whose sum is σ = 1338480. Its totient is φ = 411792.

The previous prime is 772147. The next prime is 772159. The reversal of 772155 is 551277.

It is not a de Polignac number, because 772155 - 2³ = 772147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (772159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8535 + ... + 8624.

It is an arithmetic number, because the mean of its divisors is an integer number (111540).

2⁷⁷²¹⁵⁵ is an apocalyptic number.

772155 is a deficient number, since it is larger than the sum of its proper divisors (566325).

772155 is a wasteful number, since it uses less digits than its factorization.

772155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17170 (or 17167 counting only the distinct ones).

The product of its digits is 2450, while the sum is 27.

The square root of 772155 is about 878.7235060017. The cubic root of 772155 is about 91.7419913468.

It can be divided in two parts, 7721 and 55, that added together give a 5-th power (7776 = 6⁵).

The spelling of 772155 in words is "seven hundred seventy-two thousand, one hundred fifty-five".