135648976 has 10 divisors (see below), whose sum is σ = 262819922. Its totient is φ = 67824480.

The previous prime is 135648973. The next prime is 135648977. The reversal of 135648976 is 679846531.

It can be written as a sum of positive squares in only one way, i.e., 117158976 + 18490000 = 10824^2 + 4300^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135648973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4239015 + ... + 4239046.

Almost surely, 2^135648976 is an apocalyptic number.

135648976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

135648976 is the 6226-th centered heptagonal number.

It is an amenable number.

135648976 is a deficient number, since it is larger than the sum of its proper divisors (127170946).

135648976 is an equidigital number, since it uses as much as digits as its factorization.

135648976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8478069 (or 8478063 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 49.

The square root of 135648976 is about 11646.8440360468. The cubic root of 135648976 is about 513.8134949928.

The spelling of 135648976 in words is "one hundred thirty-five million, six hundred forty-eight thousand, nine hundred seventy-six".