381512623 has 8 divisors (see below), whose sum is σ = 404126928. Its totient is φ = 358917504.

The previous prime is 381512617. The next prime is 381512639. The reversal of 381512623 is 326215183.

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 381512623 - 2⁹ = 381512111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381512123) 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, 66840 + ... + 72322.

It is an arithmetic number, because the mean of its divisors is an integer number (50515866).

Almost surely, 2^381512623 is an apocalyptic number.

381512623 is a deficient number, since it is larger than the sum of its proper divisors (22614305).

381512623 is a wasteful number, since it uses less digits than its factorization.

381512623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9593.

The product of its digits is 8640, while the sum is 31.

The square root of 381512623 is about 19532.3481179299. The cubic root of 381512623 is about 725.2754390609.

The spelling of 381512623 in words is "three hundred eighty-one million, five hundred twelve thousand, six hundred twenty-three".