3151312040 has 16 divisors (see below), whose sum is σ = 7090452180. Its totient is φ = 1260524800.

The previous prime is 3151312019. The next prime is 3151312063. The reversal of 3151312040 is 402131513.

It can be written as a sum of positive squares in 2 ways, for example, as 3135328036 + 15984004 = 55994^2 + 3998^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39391361 + ... + 39391440.

Almost surely, 2^3151312040 is an apocalyptic number.

It is an amenable number.

3151312040 is an abundant number, since it is smaller than the sum of its proper divisors (3939140140).

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

3151312040 is a wasteful number, since it uses less digits than its factorization.

3151312040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78782812 (or 78782808 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 3151312040 is about 56136.5481660567. The cubic root of 3151312040 is about 1466.1007061060.

Adding to 3151312040 its reverse (402131513), we get a palindrome (3553443553).

The spelling of 3151312040 in words is "three billion, one hundred fifty-one million, three hundred twelve thousand, forty".