155975459 has 16 divisors (see below), whose sum is σ = 167699808. Its totient is φ = 144556032.

The previous prime is 155975453. The next prime is 155975473. The reversal of 155975459 is 954579551.

It is not a de Polignac number, because 155975459 - 2²⁰ = 154926883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155975453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449324 + ... + 449670.

It is an arithmetic number, because the mean of its divisors is an integer number (10481238).

Almost surely, 2^155975459 is an apocalyptic number.

155975459 is a deficient number, since it is larger than the sum of its proper divisors (11724349).

155975459 is a wasteful number, since it uses less digits than its factorization.

155975459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694.

The product of its digits is 1417500, while the sum is 50.

The square root of 155975459 is about 12489.0135319007. The cubic root of 155975459 is about 538.2930312197.

The spelling of 155975459 in words is "one hundred fifty-five million, nine hundred seventy-five thousand, four hundred fifty-nine".