1531315314 has 32 divisors (see below), whose sum is σ = 3485926080. Its totient is φ = 497988000.

The previous prime is 1531315301. The next prime is 1531315349. The reversal of 1531315314 is 4135131351.

It is a happy number.

1531315314 is a `hidden beast` number, since 1 + 5 + 31 + 315 + 314 = 666.

It is a super-4 number, since 4×1531315314⁴ (a number of 38 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 343612 + ... + 348039.

It is an arithmetic number, because the mean of its divisors is an integer number (108935190).

Almost surely, 2^1531315314 is an apocalyptic number.

1531315314 is an abundant number, since it is smaller than the sum of its proper divisors (1954610766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1531315314 is a wasteful number, since it uses less digits than its factorization.

1531315314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691703 (or 691697 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 1531315314 is about 39132.0241490266. The cubic root of 1531315314 is about 1152.6254605931.

Adding to 1531315314 its reverse (4135131351), we get a palindrome (5666446665).

The spelling of 1531315314 in words is "one billion, five hundred thirty-one million, three hundred fifteen thousand, three hundred fourteen".