155194956 has 108 divisors (see below), whose sum is σ = 461560008. Its totient is φ = 43835904.

The previous prime is 155194939. The next prime is 155194993. The reversal of 155194956 is 659491551.

It is a happy number.

155194956 is a `hidden beast` number, since 1 + 551 + 9 + 4 + 95 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 170655 + ... + 171561.

Almost surely, 2^155194956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155194956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230780004).

155194956 is an abundant number, since it is smaller than the sum of its proper divisors (306365052).

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

155194956 is a wasteful number, since it uses less digits than its factorization.

155194956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028 (or 1016 counting only the distinct ones).

The product of its digits is 243000, while the sum is 45.

The square root of 155194956 is about 12457.7267589236. The cubic root of 155194956 is about 537.3936545331.

The spelling of 155194956 in words is "one hundred fifty-five million, one hundred ninety-four thousand, nine hundred fifty-six".