130857739 has 2 divisors, whose sum is σ = 130857740. Its totient is φ = 130857738.

The previous prime is 130857737. The next prime is 130857743. The reversal of 130857739 is 937758031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130857739 - 2¹ = 130857737 is a prime.

Together with 130857737, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 130857695 and 130857704.

It is not a weakly prime, because it can be changed into another prime (130857737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65428869 + 65428870.

It is an arithmetic number, because the mean of its divisors is an integer number (65428870).

Almost surely, 2^130857739 is an apocalyptic number.

130857739 is a deficient number, since it is larger than the sum of its proper divisors (1).

130857739 is an equidigital number, since it uses as much as digits as its factorization.

130857739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 130857739 is about 11439.3067534707. The cubic root of 130857739 is about 507.6913968238.

The spelling of 130857739 in words is "one hundred thirty million, eight hundred fifty-seven thousand, seven hundred thirty-nine".