130215157 has 2 divisors, whose sum is σ = 130215158. Its totient is φ = 130215156.

The previous prime is 130215149. The next prime is 130215187. The reversal of 130215157 is 751512031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110019121 + 20196036 = 10489^2 + 4494^2 .

It is an emirp because it is prime and its reverse (751512031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130215157 - 2³ = 130215149 is a prime.

It is a super-2 number, since 2×130215157² = 33911974225069298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130215187) 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, 65107578 + 65107579.

It is an arithmetic number, because the mean of its divisors is an integer number (65107579).

Almost surely, 2^130215157 is an apocalyptic number.

It is an amenable number.

130215157 is a deficient number, since it is larger than the sum of its proper divisors (1).

130215157 is an equidigital number, since it uses as much as digits as its factorization.

130215157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 130215157 is about 11411.1856088664. The cubic root of 130215157 is about 506.8590200992.

Adding to 130215157 its reverse (751512031), we get a palindrome (881727188).

The spelling of 130215157 in words is "one hundred thirty million, two hundred fifteen thousand, one hundred fifty-seven".