1597990102 has 16 divisors (see below), whose sum is σ = 2443122000. Its totient is φ = 783677440.

The previous prime is 1597990091. The next prime is 1597990153. The reversal of 1597990102 is 2010997951.

It is a congruent number.

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, 37902 + ... + 68062.

It is an arithmetic number, because the mean of its divisors is an integer number (152695125).

Almost surely, 2^1597990102 is an apocalyptic number.

1597990102 is a deficient number, since it is larger than the sum of its proper divisors (845131898).

1597990102 is a wasteful number, since it uses less digits than its factorization.

1597990102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30671.

The product of its (nonzero) digits is 51030, while the sum is 43.

The square root of 1597990102 is about 39974.8683800210. The cubic root of 1597990102 is about 1169.1171419533.

The spelling of 1597990102 in words is "one billion, five hundred ninety-seven million, nine hundred ninety thousand, one hundred two".