136202540 has 24 divisors (see below), whose sum is σ = 288861552. Its totient is φ = 53940800.

The previous prime is 136202519. The next prime is 136202551. The reversal of 136202540 is 45202631.

It is a super-2 number, since 2×136202540² = 37102263804903200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31694 + ... + 35733.

It is an arithmetic number, because the mean of its divisors is an integer number (12035898).

Almost surely, 2^136202540 is an apocalyptic number.

136202540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136202540 is an abundant number, since it is smaller than the sum of its proper divisors (152659012).

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

136202540 is a wasteful number, since it uses less digits than its factorization.

136202540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67537 (or 67535 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 136202540 is about 11670.5843898238. The cubic root of 136202540 is about 514.5114794341.

Subtracting from 136202540 its reverse (45202631), we obtain a palindrome (90999909).

The spelling of 136202540 in words is "one hundred thirty-six million, two hundred two thousand, five hundred forty".