507870149 has 4 divisors (see below), whose sum is σ = 507921036. Its totient is φ = 507819264.

The previous prime is 507870113. The next prime is 507870151. The reversal of 507870149 is 941078705.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 464402500 + 43467649 = 21550^2 + 6593^2 .

It is a cyclic number.

It is not a de Polignac number, because 507870149 - 2⁸ = 507869893 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507870169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4994 + ... + 32259.

It is an arithmetic number, because the mean of its divisors is an integer number (126980259).

Almost surely, 2^507870149 is an apocalyptic number.

It is an amenable number.

507870149 is a deficient number, since it is larger than the sum of its proper divisors (50887).

507870149 is a wasteful number, since it uses less digits than its factorization.

507870149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50886.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 507870149 is about 22535.9745518138. The cubic root of 507870149 is about 797.8432265733.

The spelling of 507870149 in words is "five hundred seven million, eight hundred seventy thousand, one hundred forty-nine".