151231155 has 8 divisors (see below), whose sum is σ = 241969872. Its totient is φ = 80656608.

The previous prime is 151231153. The next prime is 151231159. The reversal of 151231155 is 551132151.

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

It is not a de Polignac number, because 151231155 - 2¹ = 151231153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (151231151) 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, 5041024 + ... + 5041053.

It is an arithmetic number, because the mean of its divisors is an integer number (30246234).

Almost surely, 2^151231155 is an apocalyptic number.

151231155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

151231155 is a deficient number, since it is larger than the sum of its proper divisors (90738717).

151231155 is a wasteful number, since it uses less digits than its factorization.

151231155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10082085.

The product of its digits is 750, while the sum is 24.

The square root of 151231155 is about 12297.6076941818. The cubic root of 151231155 is about 532.7789893384.

The spelling of 151231155 in words is "one hundred fifty-one million, two hundred thirty-one thousand, one hundred fifty-five".