5131399156 has 48 divisors (see below), whose sum is σ = 9940979664. Its totient is φ = 2302949376.

The previous prime is 5131399121. The next prime is 5131399159. The reversal of 5131399156 is 6519931315.

It can be written as a sum of positive squares in 8 ways, for example, as 1144739556 + 3986659600 = 33834^2 + 63140^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131399159) 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, 303190 + ... + 319666.

It is an arithmetic number, because the mean of its divisors is an integer number (207103743).

Almost surely, 2^5131399156 is an apocalyptic number.

It is an amenable number.

5131399156 is a deficient number, since it is larger than the sum of its proper divisors (4809580508).

5131399156 is a wasteful number, since it uses less digits than its factorization.

5131399156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16660 (or 16658 counting only the distinct ones).

The product of its digits is 109350, while the sum is 43.

The square root of 5131399156 is about 71633.7850179648. The cubic root of 5131399156 is about 1724.8259048273.

The spelling of 5131399156 in words is "five billion, one hundred thirty-one million, three hundred ninety-nine thousand, one hundred fifty-six".