65381156 has 24 divisors (see below), whose sum is σ = 117473664. Its totient is φ = 31822560.

The previous prime is 65381137. The next prime is 65381159. The reversal of 65381156 is 65118356.

65381156 = 253² + 254² + ... + 596².

65381156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (65381159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79226 + ... + 80046.

It is an arithmetic number, because the mean of its divisors is an integer number (4894736).

Almost surely, 2^65381156 is an apocalyptic number.

It is an amenable number.

65381156 is a deficient number, since it is larger than the sum of its proper divisors (52092508).

65381156 is a wasteful number, since it uses less digits than its factorization.

65381156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331 (or 1329 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 65381156 is about 8085.8614878070. The cubic root of 65381156 is about 402.8569542827.

The spelling of 65381156 in words is "sixty-five million, three hundred eighty-one thousand, one hundred fifty-six".