155633946 has 32 divisors (see below), whose sum is σ = 354932928. Its totient is φ = 45070080.

The previous prime is 155633903. The next prime is 155633953. The reversal of 155633946 is 649336551.

155633946 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155633898 and 155633907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57360 + ... + 60011.

It is an arithmetic number, because the mean of its divisors is an integer number (11091654).

Almost surely, 2^155633946 is an apocalyptic number.

155633946 is an abundant number, since it is smaller than the sum of its proper divisors (199298982).

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

155633946 is a wasteful number, since it uses less digits than its factorization.

155633946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117406.

The product of its digits is 291600, while the sum is 42.

The square root of 155633946 is about 12475.3335025562. Note that the first 3 decimals coincide. The cubic root of 155633946 is about 537.8998744955.

The spelling of 155633946 in words is "one hundred fifty-five million, six hundred thirty-three thousand, nine hundred forty-six".