136356540 has 48 divisors (see below), whose sum is σ = 401896320. Its totient is φ = 34447680.

The previous prime is 136356523. The next prime is 136356553. The reversal of 136356540 is 45653631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58666 + ... + 60945.

It is an arithmetic number, because the mean of its divisors is an integer number (8372840).

Almost surely, 2^136356540 is an apocalyptic number.

136356540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136356540 is an abundant number, since it is smaller than the sum of its proper divisors (265539780).

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

136356540 is a wasteful number, since it uses less digits than its factorization.

136356540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119642 (or 119640 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 136356540 is about 11677.1803103318. The cubic root of 136356540 is about 514.7053204687.

The spelling of 136356540 in words is "one hundred thirty-six million, three hundred fifty-six thousand, five hundred forty".