1397286161252 has 12 divisors (see below), whose sum is σ = 2573948191920. Its totient is φ = 661872392136.

The previous prime is 1397286161203. The next prime is 1397286161261. The reversal of 1397286161252 is 2521616827931.

It is a junction number, because it is equal to n+sod(n) for n = 1397286161194 and 1397286161203.

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, 9192672038 + ... + 9192672189.

It is an arithmetic number, because the mean of its divisors is an integer number (214495682660).

Almost surely, 2^{1397286161252} is an apocalyptic number.

It is an amenable number.

1397286161252 is a deficient number, since it is larger than the sum of its proper divisors (1176662030668).

1397286161252 is a wasteful number, since it uses less digits than its factorization.

1397286161252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18385344250 (or 18385344248 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The spelling of 1397286161252 in words is "one trillion, three hundred ninety-seven billion, two hundred eighty-six million, one hundred sixty-one thousand, two hundred fifty-two".