138147000815 has 32 divisors (see below), whose sum is σ = 171728197632. Its totient is φ = 106575696000.

The previous prime is 138147000811. The next prime is 138147000829. The reversal of 138147000815 is 518000741831.

It is a happy number.

It is not a de Polignac number, because 138147000815 - 2² = 138147000811 is a prime.

It is a super-2 number, since 2×138147000815² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138147000811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76281260 + ... + 76283070.

It is an arithmetic number, because the mean of its divisors is an integer number (5366506176).

Almost surely, 2^138147000815 is an apocalyptic number.

138147000815 is a deficient number, since it is larger than the sum of its proper divisors (33581196817).

138147000815 is a wasteful number, since it uses less digits than its factorization.

138147000815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3311.

The product of its (nonzero) digits is 26880, while the sum is 38.

The spelling of 138147000815 in words is "one hundred thirty-eight billion, one hundred forty-seven million, eight hundred fifteen", and thus it is an aban number.