155314531 has 8 divisors (see below), whose sum is σ = 163619280. Its totient is φ = 147022848.

The previous prime is 155314513. The next prime is 155314573. The reversal of 155314531 is 135413551.

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 155314531 - 2⁷ = 155314403 is a prime.

It is a super-2 number, since 2×155314531² = 48245207079499922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155314531.

It is not an unprimeable number, because it can be changed into a prime (155314591) 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, 29835 + ... + 34651.

It is an arithmetic number, because the mean of its divisors is an integer number (20452410).

Almost surely, 2^155314531 is an apocalyptic number.

155314531 is a deficient number, since it is larger than the sum of its proper divisors (8304749).

155314531 is a wasteful number, since it uses less digits than its factorization.

155314531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6533.

The product of its digits is 4500, while the sum is 28.

The square root of 155314531 is about 12462.5250651704. The cubic root of 155314531 is about 537.5316365731.

The spelling of 155314531 in words is "one hundred fifty-five million, three hundred fourteen thousand, five hundred thirty-one".