138132501365 has 8 divisors (see below), whose sum is σ = 165760999128. Its totient is φ = 110504669440.

The previous prime is 138132501361. The next prime is 138132501491. The reversal of 138132501365 is 563105231831.

It can be written as a sum of positive squares in 4 ways, for example, as 4440623044 + 133691878321 = 66638^2 + 365639^2 .

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

It is not a de Polignac number, because 138132501365 - 2² = 138132501361 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138132501361) 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, 699425 + ... + 874905.

It is an arithmetic number, because the mean of its divisors is an integer number (20720124891).

Almost surely, 2^138132501365 is an apocalyptic number.

It is an amenable number.

138132501365 is a deficient number, since it is larger than the sum of its proper divisors (27628497763).

138132501365 is a wasteful number, since it uses less digits than its factorization.

138132501365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332919.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 138132501365 in words is "one hundred thirty-eight billion, one hundred thirty-two million, five hundred one thousand, three hundred sixty-five".