155794137 has 16 divisors (see below), whose sum is σ = 225312192. Its totient is φ = 95367680.

The previous prime is 155794063. The next prime is 155794139. The reversal of 155794137 is 731497551.

155794137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 155794137 - 2²⁰ = 154745561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155794139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35163 + ... + 39344.

It is an arithmetic number, because the mean of its divisors is an integer number (14082012).

Almost surely, 2^155794137 is an apocalyptic number.

155794137 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

155794137 is a deficient number, since it is larger than the sum of its proper divisors (69518055).

155794137 is a wasteful number, since it uses less digits than its factorization.

155794137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74568.

The product of its digits is 132300, while the sum is 42.

The square root of 155794137 is about 12481.7521606544. The cubic root of 155794137 is about 538.0843611808.

The spelling of 155794137 in words is "one hundred fifty-five million, seven hundred ninety-four thousand, one hundred thirty-seven".