31029048169 has 6 divisors (see below), whose sum is σ = 36095015274. Its totient is φ = 26596326960.

The previous prime is 31029048163. The next prime is 31029048187. The reversal of 31029048169 is 96184092013.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 30821313600 + 207734569 = 175560^2 + 14413^2 .

It is not a de Polignac number, because 31029048169 - 2⁹ = 31029047657 is a prime.

It is a super-2 number, since 2×31029048169² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31029048163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 316622892 + ... + 316622989.

It is an arithmetic number, because the mean of its divisors is an integer number (6015835879).

Almost surely, 2^31029048169 is an apocalyptic number.

It is an amenable number.

31029048169 is a deficient number, since it is larger than the sum of its proper divisors (5065967105).

31029048169 is an equidigital number, since it uses as much as digits as its factorization.

31029048169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633245895 (or 633245888 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 31029048169 in words is "thirty-one billion, twenty-nine million, forty-eight thousand, one hundred sixty-nine".