1397522245652 has 48 divisors (see below), whose sum is σ = 2644760966400. Its totient is φ = 642329170560.

The previous prime is 1397522245631. The next prime is 1397522245661. The reversal of 1397522245652 is 2565422257931.

It is a junction number, because it is equal to n+sod(n) for n = 1397522245594 and 1397522245603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12973349 + ... + 13080627.

It is an arithmetic number, because the mean of its divisors is an integer number (55099186800).

Almost surely, 2^{1397522245652} is an apocalyptic number.

It is an amenable number.

1397522245652 is a deficient number, since it is larger than the sum of its proper divisors (1247238720748).

1397522245652 is a wasteful number, since it uses less digits than its factorization.

1397522245652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108336 (or 108334 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 53.

The spelling of 1397522245652 in words is "one trillion, three hundred ninety-seven billion, five hundred twenty-two million, two hundred forty-five thousand, six hundred fifty-two".