520342149 has 8 divisors (see below), whose sum is σ = 701585280. Its totient is φ = 342996896.

The previous prime is 520342127. The next prime is 520342153. The reversal of 520342149 is 941243025.

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 520342149 - 2⁸ = 520341893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520342169) 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, 974157 + ... + 974690.

It is an arithmetic number, because the mean of its divisors is an integer number (87698160).

Almost surely, 2^520342149 is an apocalyptic number.

It is an amenable number.

520342149 is a deficient number, since it is larger than the sum of its proper divisors (181243131).

520342149 is a wasteful number, since it uses less digits than its factorization.

520342149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948939.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 520342149 is about 22811.0093814369. The cubic root of 520342149 is about 804.3214832157.

The spelling of 520342149 in words is "five hundred twenty million, three hundred forty-two thousand, one hundred forty-nine".