1997130115 has 8 divisors (see below), whose sum is σ = 2404118160. Its totient is φ = 1592662752.

The previous prime is 1997130101. The next prime is 1997130119. The reversal of 1997130115 is 5110317991.

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

It is a cyclic number.

It is not a de Polignac number, because 1997130115 - 2⁷ = 1997129987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1997130119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628425 + ... + 631594.

It is an arithmetic number, because the mean of its divisors is an integer number (300514770).

Almost surely, 2^1997130115 is an apocalyptic number.

1997130115 is a deficient number, since it is larger than the sum of its proper divisors (406988045).

1997130115 is a wasteful number, since it uses less digits than its factorization.

1997130115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260341.

The product of its (nonzero) digits is 8505, while the sum is 37.

The square root of 1997130115 is about 44689.2617414967. The cubic root of 1997130115 is about 1259.3181233275.

It can be divided in two parts, 19971 and 30115, that added together give a triangular number (50086 = T₃₁₆).

The spelling of 1997130115 in words is "one billion, nine hundred ninety-seven million, one hundred thirty thousand, one hundred fifteen".