772325139 has 4 divisors (see below), whose sum is σ = 1029766856. Its totient is φ = 514883424.

The previous prime is 772325131. The next prime is 772325143. The reversal of 772325139 is 931523277.

772325139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931523277 = 3 ⋅310507759.

It is not a de Polignac number, because 772325139 - 2³ = 772325131 is a prime.

It is a super-2 number, since 2×772325139² = 1192972240662738642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 772325097 and 772325106.

It is not an unprimeable number, because it can be changed into a prime (772325131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128720854 + ... + 128720859.

It is an arithmetic number, because the mean of its divisors is an integer number (257441714).

Almost surely, 2^772325139 is an apocalyptic number.

772325139 is a deficient number, since it is larger than the sum of its proper divisors (257441717).

772325139 is a wasteful number, since it uses less digits than its factorization.

772325139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257441716.

The product of its digits is 79380, while the sum is 39.

The square root of 772325139 is about 27790.7383673050. The cubic root of 772325139 is about 917.4872908920.

The spelling of 772325139 in words is "seven hundred seventy-two million, three hundred twenty-five thousand, one hundred thirty-nine".