507112381 has 4 divisors (see below), whose sum is σ = 507956764. Its totient is φ = 506268000.

The previous prime is 507112379. The next prime is 507112391. The reversal of 507112381 is 183211705.

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 327284281 + 179828100 = 18091^2 + 13410^2 .

It is a cyclic number.

It is not a de Polignac number, because 507112381 - 2¹ = 507112379 is a prime.

It is a super-2 number, since 2×507112381² = 514325933926978322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507112391) 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, 421290 + ... + 422491.

It is an arithmetic number, because the mean of its divisors is an integer number (126989191).

Almost surely, 2^507112381 is an apocalyptic number.

It is an amenable number.

507112381 is a deficient number, since it is larger than the sum of its proper divisors (844383).

507112381 is an equidigital number, since it uses as much as digits as its factorization.

507112381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844382.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 507112381 is about 22519.1558678384. The cubic root of 507112381 is about 797.4462215483.

The spelling of 507112381 in words is "five hundred seven million, one hundred twelve thousand, three hundred eighty-one".