130139869 has 2 divisors, whose sum is σ = 130139870. Its totient is φ = 130139868.

The previous prime is 130139843. The next prime is 130139881. The reversal of 130139869 is 968931031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129663769 + 476100 = 11387^2 + 690^2 .

It is a cyclic number.

It is not a de Polignac number, because 130139869 - 2⁵ = 130139837 is a prime.

It is a super-2 number, since 2×130139869² = 33872771006674322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130139809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65069934 + 65069935.

It is an arithmetic number, because the mean of its divisors is an integer number (65069935).

Almost surely, 2^130139869 is an apocalyptic number.

It is an amenable number.

130139869 is a deficient number, since it is larger than the sum of its proper divisors (1).

130139869 is an equidigital number, since it uses as much as digits as its factorization.

130139869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 130139869 is about 11407.8862634583. The cubic root of 130139869 is about 506.7613157569.

The spelling of 130139869 in words is "one hundred thirty million, one hundred thirty-nine thousand, eight hundred sixty-nine".