136421560 has 32 divisors (see below), whose sum is σ = 334854000. Its totient is φ = 49607680.

The previous prime is 136421531. The next prime is 136421563. The reversal of 136421560 is 65124631.

It is a super-2 number, since 2×136421560² = 37221684065667200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136421563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154585 + ... + 155464.

Almost surely, 2^136421560 is an apocalyptic number.

136421560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136421560 is an abundant number, since it is smaller than the sum of its proper divisors (198432440).

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

136421560 is a wasteful number, since it uses less digits than its factorization.

136421560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310071 (or 310067 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 136421560 is about 11679.9640410405. The cubic root of 136421560 is about 514.7871178460.

The spelling of 136421560 in words is "one hundred thirty-six million, four hundred twenty-one thousand, five hundred sixty".