522078131 has 2 divisors, whose sum is σ = 522078132. Its totient is φ = 522078130.

The previous prime is 522078119. The next prime is 522078157. The reversal of 522078131 is 131870225.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-522078131 is a prime.

It is a super-2 number, since 2×522078131² = 545131149736906322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 522078094 and 522078103.

It is not a weakly prime, because it can be changed into another prime (522078101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261039065 + 261039066.

It is an arithmetic number, because the mean of its divisors is an integer number (261039066).

Almost surely, 2^522078131 is an apocalyptic number.

522078131 is a deficient number, since it is larger than the sum of its proper divisors (1).

522078131 is an equidigital number, since it uses as much as digits as its factorization.

522078131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 522078131 is about 22849.0291040998. The cubic root of 522078131 is about 805.2149579622.

The spelling of 522078131 in words is "five hundred twenty-two million, seventy-eight thousand, one hundred thirty-one".