772145 has 16 divisors (see below), whose sum is σ = 1028160. Its totient is φ = 552000.

The previous prime is 772139. The next prime is 772147. The reversal of 772145 is 541277.

It is not a de Polignac number, because 772145 - 2⁶ = 772081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5486 + ... + 5624.

It is an arithmetic number, because the mean of its divisors is an integer number (64260).

2⁷⁷²¹⁴⁵ is an apocalyptic number.

It is an amenable number.

772145 is a deficient number, since it is larger than the sum of its proper divisors (256015).

772145 is a wasteful number, since it uses less digits than its factorization.

772145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256.

The product of its digits is 1960, while the sum is 26.

The square root of 772145 is about 878.7178159113. The cubic root of 772145 is about 91.7415953021.

It can be divided in two parts, 77 and 2145, that added together give a palindrome (2222).

The spelling of 772145 in words is "seven hundred seventy-two thousand, one hundred forty-five".