130597997 has 4 divisors (see below), whose sum is σ = 133783356. Its totient is φ = 127412640.

The previous prime is 130597993. The next prime is 130598003. The reversal of 130597997 is 799795031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7365796 + 123232201 = 2714^2 + 11101^2 .

It is a cyclic number.

It is not a de Polignac number, because 130597997 - 2² = 130597993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130597993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1592618 + ... + 1592699.

It is an arithmetic number, because the mean of its divisors is an integer number (33445839).

Almost surely, 2^130597997 is an apocalyptic number.

It is an amenable number.

130597997 is a deficient number, since it is larger than the sum of its proper divisors (3185359).

130597997 is an equidigital number, since it uses as much as digits as its factorization.

130597997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3185358.

The product of its (nonzero) digits is 535815, while the sum is 50.

The square root of 130597997 is about 11427.9480660353. The cubic root of 130597997 is about 507.3552655774.

The spelling of 130597997 in words is "one hundred thirty million, five hundred ninety-seven thousand, nine hundred ninety-seven".