155698230 has 32 divisors (see below), whose sum is σ = 379806048. Its totient is φ = 40838400.

The previous prime is 155698229. The next prime is 155698253. The reversal of 155698230 is 32896551.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 40711 + ... + 44370.

It is an arithmetic number, because the mean of its divisors is an integer number (11868939).

Almost surely, 2^155698230 is an apocalyptic number.

155698230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155698230 is an abundant number, since it is smaller than the sum of its proper divisors (224107818).

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

155698230 is a wasteful number, since it uses less digits than its factorization.

155698230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85152.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 155698230 is about 12477.9096807117. The cubic root of 155698230 is about 537.9739234561.

The spelling of 155698230 in words is "one hundred fifty-five million, six hundred ninety-eight thousand, two hundred thirty".