1500165138 has 8 divisors (see below), whose sum is σ = 3000330288. Its totient is φ = 500055044.

The previous prime is 1500165137. The next prime is 1500165143. The reversal of 1500165138 is 8315610051.

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

1500165138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1500165137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125013756 + ... + 125013767.

It is an arithmetic number, because the mean of its divisors is an integer number (375041286).

Almost surely, 2^1500165138 is an apocalyptic number.

1500165138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1500165138 is a wasteful number, since it uses less digits than its factorization.

1500165138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250027528.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 1500165138 is about 38731.9653258133. The cubic root of 1500165138 is about 1144.7562489720.

Adding to 1500165138 its reverse (8315610051), we get a palindrome (9815775189).

The spelling of 1500165138 in words is "one billion, five hundred million, one hundred sixty-five thousand, one hundred thirty-eight".