38515081 has 8 divisors (see below), whose sum is σ = 44488224. Its totient is φ = 32953920.

The previous prime is 38515079. The next prime is 38515091. The reversal of 38515081 is 18051583.

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 38515081 - 2¹ = 38515079 is a prime.

It is a super-2 number, since 2×38515081² = 2966822928873122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38515021) 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, 102795 + ... + 103168.

It is an arithmetic number, because the mean of its divisors is an integer number (5561028).

Almost surely, 2^38515081 is an apocalyptic number.

It is an amenable number.

38515081 is a deficient number, since it is larger than the sum of its proper divisors (5973143).

38515081 is a wasteful number, since it uses less digits than its factorization.

38515081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205991.

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 38515081 is about 6206.0519656219. The cubic root of 38515081 is about 337.7097545681.

The spelling of 38515081 in words is "thirty-eight million, five hundred fifteen thousand, eighty-one".