130214857 has 4 divisors (see below), whose sum is σ = 130407876. Its totient is φ = 130021840.

The previous prime is 130214807. The next prime is 130214867. The reversal of 130214857 is 758412031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68293696 + 61921161 = 8264^2 + 7869^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130214857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130214807) 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, 95494 + ... + 96847.

It is an arithmetic number, because the mean of its divisors is an integer number (32601969).

Almost surely, 2^130214857 is an apocalyptic number.

It is an amenable number.

130214857 is a deficient number, since it is larger than the sum of its proper divisors (193019).

130214857 is an equidigital number, since it uses as much as digits as its factorization.

130214857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193018.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 130214857 is about 11411.1724638619. The cubic root of 130214857 is about 506.8586308516.

Adding to 130214857 its reverse (758412031), we get a palindrome (888626888).

The spelling of 130214857 in words is "one hundred thirty million, two hundred fourteen thousand, eight hundred fifty-seven".