1997130119 has 2 divisors, whose sum is σ = 1997130120. Its totient is φ = 1997130118.

The previous prime is 1997130101. The next prime is 1997130193. The reversal of 1997130119 is 9110317991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1997130119 - 2²⁴ = 1980352903 is a prime.

It is a super-2 number, since 2×1997130119² = 7977057424433908322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1997130419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998565059 + 998565060.

It is an arithmetic number, because the mean of its divisors is an integer number (998565060).

Almost surely, 2^1997130119 is an apocalyptic number.

1997130119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1997130119 is an equidigital number, since it uses as much as digits as its factorization.

1997130119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15309, while the sum is 41.

The square root of 1997130119 is about 44689.2617862502. The cubic root of 1997130119 is about 1259.3181241682.

The spelling of 1997130119 in words is "one billion, nine hundred ninety-seven million, one hundred thirty thousand, one hundred nineteen".