155753994 has 32 divisors (see below), whose sum is σ = 340978176. Its totient is φ = 47038320.

The previous prime is 155753989. The next prime is 155754083. The reversal of 155753994 is 499357551.

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 15 ways as a sum of consecutive naturals, for example, 16419 + ... + 24105.

It is an arithmetic number, because the mean of its divisors is an integer number (10655568).

Almost surely, 2^155753994 is an apocalyptic number.

155753994 is an abundant number, since it is smaller than the sum of its proper divisors (185224182).

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

155753994 is a wasteful number, since it uses less digits than its factorization.

155753994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8010.

The product of its digits is 850500, while the sum is 48.

The square root of 155753994 is about 12480.1439895540. The cubic root of 155753994 is about 538.0381416923.

The spelling of 155753994 in words is "one hundred fifty-five million, seven hundred fifty-three thousand, nine hundred ninety-four".