155959481 has 8 divisors (see below), whose sum is σ = 167990784. Its totient is φ = 144365760.

The previous prime is 155959469. The next prime is 155959501. The reversal of 155959481 is 184959551.

It is a happy number.

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

It is not a de Polignac number, because 155959481 - 2¹⁰ = 155958457 is a prime.

It is a super-2 number, since 2×155959481² = 48646719427578722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155959421) 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 7 ways as a sum of consecutive naturals, for example, 108656 + ... + 110081.

It is an arithmetic number, because the mean of its divisors is an integer number (20998848).

Almost surely, 2^155959481 is an apocalyptic number.

It is an amenable number.

155959481 is a deficient number, since it is larger than the sum of its proper divisors (12031303).

155959481 is a wasteful number, since it uses less digits than its factorization.

155959481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218791.

The product of its digits is 324000, while the sum is 47.

The square root of 155959481 is about 12488.3738332899. The cubic root of 155959481 is about 538.2746498242.

The spelling of 155959481 in words is "one hundred fifty-five million, nine hundred fifty-nine thousand, four hundred eighty-one".