136530768 has 40 divisors (see below), whose sum is σ = 384770016. Its totient is φ = 41372800.

The previous prime is 136530743. The next prime is 136530787. The reversal of 136530768 is 867035631.

It is a super-2 number, since 2×136530768² = 37281301221339648, 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, 128763 + ... + 129818.

Almost surely, 2^136530768 is an apocalyptic number.

It is an amenable number.

136530768 is an abundant number, since it is smaller than the sum of its proper divisors (248239248).

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

136530768 is a wasteful number, since it uses less digits than its factorization.

136530768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258603 (or 258597 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 136530768 is about 11684.6381201987. The cubic root of 136530768 is about 514.9244467667.

The spelling of 136530768 in words is "one hundred thirty-six million, five hundred thirty thousand, seven hundred sixty-eight".