381083513 has 12 divisors (see below), whose sum is σ = 404183088. Its totient is φ = 359243640.

The previous prime is 381083497. The next prime is 381083557. The reversal of 381083513 is 315380183.

It is not a de Polignac number, because 381083513 - 2⁴ = 381083497 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 381083513.

It is not an unprimeable number, because it can be changed into a prime (383083513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73670 + ... + 78672.

It is an arithmetic number, because the mean of its divisors is an integer number (33681924).

Almost surely, 2^381083513 is an apocalyptic number.

It is an amenable number.

381083513 is a deficient number, since it is larger than the sum of its proper divisors (23099575).

381083513 is a wasteful number, since it uses less digits than its factorization.

381083513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252 (or 5233 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 381083513 is about 19521.3604290275. The cubic root of 381083513 is about 725.0034168686.

The spelling of 381083513 in words is "three hundred eighty-one million, eighty-three thousand, five hundred thirteen".