5145559731 has 36 divisors (see below), whose sum is σ = 8062697448. Its totient is φ = 3160789632.

The previous prime is 5145559721. The next prime is 5145559753. The reversal of 5145559731 is 1379555415.

5145559731 is a `hidden beast` number, since 5 + 1 + 4 + 55 + 597 + 3 + 1 = 666.

It is not a de Polignac number, because 5145559731 - 2⁶ = 5145559667 is a prime.

It is a super-2 number, since 2×5145559731² = 52953569890577584722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5145559721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 935716 + ... + 941198.

It is an arithmetic number, because the mean of its divisors is an integer number (223963818).

Almost surely, 2^5145559731 is an apocalyptic number.

5145559731 is a deficient number, since it is larger than the sum of its proper divisors (2917137717).

5145559731 is a wasteful number, since it uses less digits than its factorization.

5145559731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6132 (or 6116 counting only the distinct ones).

The product of its digits is 472500, while the sum is 45.

The square root of 5145559731 is about 71732.5569807741. The cubic root of 5145559731 is about 1726.4110536320.

The spelling of 5145559731 in words is "five billion, one hundred forty-five million, five hundred fifty-nine thousand, seven hundred thirty-one".