65498136 has 32 divisors (see below), whose sum is σ = 178632000. Its totient is φ = 19847840.

The previous prime is 65498113. The next prime is 65498141. The reversal of 65498136 is 63189456.

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, 123786 + ... + 124313.

It is an arithmetic number, because the mean of its divisors is an integer number (5582250).

Almost surely, 2^65498136 is an apocalyptic number.

65498136 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

65498136 is an abundant number, since it is smaller than the sum of its proper divisors (113133864).

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

65498136 is a wasteful number, since it uses less digits than its factorization.

65498136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248119 (or 248115 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 65498136 is about 8093.0918689954. The cubic root of 65498136 is about 403.0970750923.

It can be divided in two parts, 654 and 98136, that added together give a triangular number (98790 = T₄₄₄).

The spelling of 65498136 in words is "sixty-five million, four hundred ninety-eight thousand, one hundred thirty-six".