31125147349 has 8 divisors (see below), whose sum is σ = 31269946752. Its totient is φ = 30980477760.

The previous prime is 31125147311. The next prime is 31125147367. The reversal of 31125147349 is 94374152113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31125147349 - 2¹⁷ = 31125016277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31125148349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465882 + ... + 528484.

It is an arithmetic number, because the mean of its divisors is an integer number (3908743344).

Almost surely, 2^31125147349 is an apocalyptic number.

It is an amenable number.

31125147349 is a deficient number, since it is larger than the sum of its proper divisors (144799403).

31125147349 is a wasteful number, since it uses less digits than its factorization.

31125147349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64907.

The product of its digits is 90720, while the sum is 40.

The spelling of 31125147349 in words is "thirty-one billion, one hundred twenty-five million, one hundred forty-seven thousand, three hundred forty-nine".