130620157 has 2 divisors, whose sum is σ = 130620158. Its totient is φ = 130620156.

The previous prime is 130620131. The next prime is 130620173. The reversal of 130620157 is 751026031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84529636 + 46090521 = 9194^2 + 6789^2 .

It is a cyclic number.

It is not a de Polignac number, because 130620157 - 2¹¹ = 130618109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130620557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65310078 + 65310079.

It is an arithmetic number, because the mean of its divisors is an integer number (65310079).

Almost surely, 2^130620157 is an apocalyptic number.

It is an amenable number.

130620157 is a deficient number, since it is larger than the sum of its proper divisors (1).

130620157 is an equidigital number, since it uses as much as digits as its factorization.

130620157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 130620157 is about 11428.9175777936. The cubic root of 130620157 is about 507.3839601391.

Adding to 130620157 its reverse (751026031), we get a palindrome (881646188).

The spelling of 130620157 in words is "one hundred thirty million, six hundred twenty thousand, one hundred fifty-seven".