155672243 has 8 divisors (see below), whose sum is σ = 157448928. Its totient is φ = 153900864.

The previous prime is 155672233. The next prime is 155672269. The reversal of 155672243 is 342276551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155672243 - 2²⁶ = 88563379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155672233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95705 + ... + 97317.

It is an arithmetic number, because the mean of its divisors is an integer number (19681116).

Almost surely, 2^155672243 is an apocalyptic number.

155672243 is a deficient number, since it is larger than the sum of its proper divisors (1776685).

155672243 is a wasteful number, since it uses less digits than its factorization.

155672243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653.

The product of its digits is 50400, while the sum is 35.

The square root of 155672243 is about 12476.8683170097. The cubic root of 155672243 is about 537.9439913963.

The spelling of 155672243 in words is "one hundred fifty-five million, six hundred seventy-two thousand, two hundred forty-three".