155953490 has 64 divisors (see below), whose sum is σ = 351606528. Its totient is φ = 48384000.

The previous prime is 155953481. The next prime is 155953513. The reversal of 155953490 is 94359551.

It is a happy number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 259190 + ... + 259790.

It is an arithmetic number, because the mean of its divisors is an integer number (5493852).

Almost surely, 2^155953490 is an apocalyptic number.

155953490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155953490 is an abundant number, since it is smaller than the sum of its proper divisors (195653038).

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

155953490 is a wasteful number, since it uses less digits than its factorization.

155953490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963.

The product of its (nonzero) digits is 121500, while the sum is 41.

The square root of 155953490 is about 12488.1339678913. The cubic root of 155953490 is about 538.2677573402.

The spelling of 155953490 in words is "one hundred fifty-five million, nine hundred fifty-three thousand, four hundred ninety".