155423913 has 8 divisors (see below), whose sum is σ = 210629376. Its totient is φ = 101917200.

The previous prime is 155423893. The next prime is 155423921. The reversal of 155423913 is 319324551.

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

It is not a de Polignac number, because 155423913 - 2⁵ = 155423881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155421913) 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, 424473 + ... + 424838.

It is an arithmetic number, because the mean of its divisors is an integer number (26328672).

Almost surely, 2^155423913 is an apocalyptic number.

It is an amenable number.

155423913 is a deficient number, since it is larger than the sum of its proper divisors (55205463).

155423913 is an equidigital number, since it uses as much as digits as its factorization.

155423913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849375.

The product of its digits is 16200, while the sum is 33.

The square root of 155423913 is about 12466.9127293007. The cubic root of 155423913 is about 537.6577945224.

The spelling of 155423913 in words is "one hundred fifty-five million, four hundred twenty-three thousand, nine hundred thirteen".