523814381 has 8 divisors (see below), whose sum is σ = 537679128. Its totient is φ = 510120000.

The previous prime is 523814341. The next prime is 523814383. The reversal of 523814381 is 183418325.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 50055625 + 473758756 = 7075^2 + 21766^2 .

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 523814381 - 2¹⁰ = 523813357 is a prime.

It is a super-2 number, since 2×523814381² = 548763011484826322, which contains 22 as substring.

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 (523814383) 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, 36350 + ... + 48671.

It is an arithmetic number, because the mean of its divisors is an integer number (67209891).

Almost surely, 2^523814381 is an apocalyptic number.

It is an amenable number.

523814381 is a deficient number, since it is larger than the sum of its proper divisors (13864747).

523814381 is a wasteful number, since it uses less digits than its factorization.

523814381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85183.

The product of its digits is 23040, while the sum is 35.

The square root of 523814381 is about 22886.9915235708. The cubic root of 523814381 is about 806.1065917560.

The spelling of 523814381 in words is "five hundred twenty-three million, eight hundred fourteen thousand, three hundred eighty-one".