130645157 has 4 divisors (see below), whose sum is σ = 130974636. Its totient is φ = 130315680.

The previous prime is 130645139. The next prime is 130645169. The reversal of 130645157 is 751546031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 751546031 = 41 ⋅18330391.

It can be written as a sum of positive squares in 2 ways, for example, as 30625156 + 100020001 = 5534^2 + 10001^2 .

It is a cyclic number.

It is not a de Polignac number, because 130645157 - 2²² = 126450853 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 (130645117) 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, 164144 + ... + 164937.

It is an arithmetic number, because the mean of its divisors is an integer number (32743659).

Almost surely, 2^130645157 is an apocalyptic number.

It is an amenable number.

130645157 is a deficient number, since it is larger than the sum of its proper divisors (329479).

130645157 is an equidigital number, since it uses as much as digits as its factorization.

130645157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329478.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 130645157 is about 11430.0112423392. The cubic root of 130645157 is about 507.4163282670.

The spelling of 130645157 in words is "one hundred thirty million, six hundred forty-five thousand, one hundred fifty-seven".