151531655 has 8 divisors (see below), whose sum is σ = 198368784. Its totient is φ = 110204800.

The previous prime is 151531651. The next prime is 151531657. The reversal of 151531655 is 556135151.

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

It is not a de Polignac number, because 151531655 - 2² = 151531651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151531651) 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, 1377506 + ... + 1377615.

It is an arithmetic number, because the mean of its divisors is an integer number (24796098).

Almost surely, 2^151531655 is an apocalyptic number.

151531655 is a deficient number, since it is larger than the sum of its proper divisors (46837129).

151531655 is a wasteful number, since it uses less digits than its factorization.

151531655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755137.

The product of its digits is 11250, while the sum is 32.

The square root of 151531655 is about 12309.8194544031. The cubic root of 151531655 is about 533.1316374910.

The spelling of 151531655 in words is "one hundred fifty-one million, five hundred thirty-one thousand, six hundred fifty-five".