38135665 has 8 divisors (see below), whose sum is σ = 45926208. Its totient is φ = 30399600.

The previous prime is 38135651. The next prime is 38135677. The reversal of 38135665 is 56653183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38135665 - 2¹¹ = 38133617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12061 + ... + 14890.

It is an arithmetic number, because the mean of its divisors is an integer number (5740776).

Almost surely, 2^38135665 is an apocalyptic number.

It is an amenable number.

38135665 is a deficient number, since it is larger than the sum of its proper divisors (7790543).

38135665 is a wasteful number, since it uses less digits than its factorization.

38135665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27239.

The product of its digits is 64800, while the sum is 37.

The square root of 38135665 is about 6175.4080836816. The cubic root of 38135665 is about 336.5971553165.

It can be divided in two parts, 381 and 35665, that added together give a triangular number (36046 = T₂₆₈).

The spelling of 38135665 in words is "thirty-eight million, one hundred thirty-five thousand, six hundred sixty-five".