65722136 has 16 divisors (see below), whose sum is σ = 130478040. Its totient is φ = 30928000.

The previous prime is 65722133. The next prime is 65722141. The reversal of 65722136 is 63122756.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65722133) 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, 241490 + ... + 241761.

Almost surely, 2^65722136 is an apocalyptic number.

It is an amenable number.

65722136 is a deficient number, since it is larger than the sum of its proper divisors (64755904).

65722136 is a wasteful number, since it uses less digits than its factorization.

65722136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483274 (or 483270 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 65722136 is about 8106.9190201950. The cubic root of 65722136 is about 403.5560754662.

The spelling of 65722136 in words is "sixty-five million, seven hundred twenty-two thousand, one hundred thirty-six".