136155940 has 24 divisors (see below), whose sum is σ = 291324600. Its totient is φ = 53434368.

The previous prime is 136155923. The next prime is 136155953. The reversal of 136155940 is 49551631.

It can be written as a sum of positive squares in 4 ways, for example, as 24980004 + 111175936 = 4998^2 + 10544^2 .

It is a junction number, because it is equal to n+sod(n) for n = 136155896 and 136155905.

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, 63165 + ... + 65284.

It is an arithmetic number, because the mean of its divisors is an integer number (12138525).

Almost surely, 2^136155940 is an apocalyptic number.

136155940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136155940 is an abundant number, since it is smaller than the sum of its proper divisors (155168660).

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

136155940 is a wasteful number, since it uses less digits than its factorization.

136155940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128511 (or 128509 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 136155940 is about 11668.5877465956. The cubic root of 136155940 is about 514.4527948460.

The spelling of 136155940 in words is "one hundred thirty-six million, one hundred fifty-five thousand, nine hundred forty".