155959040 has 36 divisors (see below), whose sum is σ = 373573704. Its totient is φ = 62383104.

The previous prime is 155959031. The next prime is 155959043. The reversal of 155959040 is 40959551.

It is a junction number, because it is equal to n+sod(n) for n = 155958985 and 155959003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155959043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59642 + ... + 62201.

Almost surely, 2^155959040 is an apocalyptic number.

155959040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155959040 is an abundant number, since it is smaller than the sum of its proper divisors (217614664).

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

155959040 is an equidigital number, since it uses as much as digits as its factorization.

155959040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121864 (or 121850 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 38.

The square root of 155959040 is about 12488.3561768553. The cubic root of 155959040 is about 538.2741424716.

The spelling of 155959040 in words is "one hundred fifty-five million, nine hundred fifty-nine thousand, forty".