872564135 has 16 divisors (see below), whose sum is σ = 1058523552. Its totient is φ = 690441600.

The previous prime is 872564131. The next prime is 872564137. The reversal of 872564135 is 531465278.

It is not a de Polignac number, because 872564135 - 2² = 872564131 is a prime.

It is a super-2 number, since 2×872564135² = 1522736339376596450, 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 = 872564092 and 872564101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872564131) 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, 631145 + ... + 632525.

It is an arithmetic number, because the mean of its divisors is an integer number (66157722).

Almost surely, 2^872564135 is an apocalyptic number.

872564135 is a deficient number, since it is larger than the sum of its proper divisors (185959417).

872564135 is a wasteful number, since it uses less digits than its factorization.

872564135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2674.

The product of its digits is 201600, while the sum is 41.

The square root of 872564135 is about 29539.1965869080. The cubic root of 872564135 is about 955.5772156293.

The spelling of 872564135 in words is "eight hundred seventy-two million, five hundred sixty-four thousand, one hundred thirty-five".