65144156 has 24 divisors (see below), whose sum is σ = 142133376. Its totient is φ = 25380720.

The previous prime is 65144147. The next prime is 65144197.

65144156 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×65144156² = 8487522121904672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105446 + ... + 106061.

It is an arithmetic number, because the mean of its divisors is an integer number (5922224).

Almost surely, 2^65144156 is an apocalyptic number.

It is an amenable number.

65144156 is an abundant number, since it is smaller than the sum of its proper divisors (76989220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65144156 is a wasteful number, since it uses less digits than its factorization.

65144156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211529 (or 211527 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 65144156 is about 8071.1929725413. The cubic root of 65144156 is about 402.3695931845.

The spelling of 65144156 in words is "sixty-five million, one hundred forty-four thousand, one hundred fifty-six".