155374159 has 4 divisors (see below), whose sum is σ = 156799720. Its totient is φ = 153948600.

The previous prime is 155374157. The next prime is 155374181. The reversal of 155374159 is 951473551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155374159 - 2¹ = 155374157 is a prime.

It is a super-2 number, since 2×155374159² = 48282258569914562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155374157) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 712617 + ... + 712834.

It is an arithmetic number, because the mean of its divisors is an integer number (39199930).

Almost surely, 2^155374159 is an apocalyptic number.

155374159 is a deficient number, since it is larger than the sum of its proper divisors (1425561).

155374159 is a wasteful number, since it uses less digits than its factorization.

155374159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425560.

The product of its digits is 94500, while the sum is 40.

The square root of 155374159 is about 12464.9171276828. The cubic root of 155374159 is about 537.6004170779.

The spelling of 155374159 in words is "one hundred fifty-five million, three hundred seventy-four thousand, one hundred fifty-nine".