31145445453154 has 8 divisors (see below), whose sum is σ = 46752194526300. Its totient is φ = 15561380611056.

The previous prime is 31145445453121. The next prime is 31145445453251. The reversal of 31145445453154 is 45135454454113.

It can be written as a sum of positive squares in 2 ways, for example, as 24035633838225 + 7109811614929 = 4902615^2 + 2666423^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 31145445453098 and 31145445453107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5671054329 + ... + 5671059820.

Almost surely, 2^{31145445453154} is an apocalyptic number.

31145445453154 is a deficient number, since it is larger than the sum of its proper divisors (15606749073146).

31145445453154 is a wasteful number, since it uses less digits than its factorization.

31145445453154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11342115524.

The product of its digits is 5760000, while the sum is 49.

The spelling of 31145445453154 in words is "thirty-one trillion, one hundred forty-five billion, four hundred forty-five million, four hundred fifty-three thousand, one hundred fifty-four".