31475271145 has 8 divisors (see below), whose sum is σ = 37822861440. Its totient is φ = 25145192880.

The previous prime is 31475271119. The next prime is 31475271151. The reversal of 31475271145 is 54117257413.

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

It is a de Polignac number, because none of the positive numbers 2^k-31475271145 is a prime.

It is a super-2 number, since 2×31475271145² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31475271098 and 31475271107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4374051 + ... + 4381240.

It is an arithmetic number, because the mean of its divisors is an integer number (4727857680).

Almost surely, 2^31475271145 is an apocalyptic number.

It is an amenable number.

31475271145 is a deficient number, since it is larger than the sum of its proper divisors (6347590295).

31475271145 is an equidigital number, since it uses as much as digits as its factorization.

31475271145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8756015.

The product of its digits is 117600, while the sum is 40.

The spelling of 31475271145 in words is "thirty-one billion, four hundred seventy-five million, two hundred seventy-one thousand, one hundred forty-five".