1531314155 has 16 divisors (see below), whose sum is σ = 2129670144. Its totient is φ = 1035252960.

The previous prime is 1531314137. The next prime is 1531314157. The reversal of 1531314155 is 5514131351.

It is not a de Polignac number, because 1531314155 - 2⁶ = 1531314091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1531314157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305627 + ... + 310596.

It is an arithmetic number, because the mean of its divisors is an integer number (133104384).

Almost surely, 2^1531314155 is an apocalyptic number.

1531314155 is a deficient number, since it is larger than the sum of its proper divisors (598355989).

1531314155 is an equidigital number, since it uses as much as digits as its factorization.

1531314155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616306.

The product of its digits is 4500, while the sum is 29.

The square root of 1531314155 is about 39132.0093401808. The cubic root of 1531314155 is about 1152.6251697988.

The spelling of 1531314155 in words is "one billion, five hundred thirty-one million, three hundred fourteen thousand, one hundred fifty-five".