522142307 has 8 divisors (see below), whose sum is σ = 530157312. Its totient is φ = 514145800.

The previous prime is 522142253. The next prime is 522142333. The reversal of 522142307 is 703241225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 522142307 - 2⁸ = 522142051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522142337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58832 + ... + 67122.

It is an arithmetic number, because the mean of its divisors is an integer number (66269664).

Almost surely, 2^522142307 is an apocalyptic number.

522142307 is a deficient number, since it is larger than the sum of its proper divisors (8015005).

522142307 is an equidigital number, since it uses as much as digits as its factorization.

522142307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9249.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 522142307 is about 22850.4334094564. The cubic root of 522142307 is about 805.2479500598.

The spelling of 522142307 in words is "five hundred twenty-two million, one hundred forty-two thousand, three hundred seven".