138090214615 has 8 divisors (see below), whose sum is σ = 169749922608. Its totient is φ = 107777728320.

The previous prime is 138090214543. The next prime is 138090214637. The reversal of 138090214615 is 516412090831.

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

It is not a de Polignac number, because 138090214615 - 2¹⁵ = 138090181847 is a prime.

It is a Duffinian number.

It is a congruent 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, 336805197 + ... + 336805606.

It is an arithmetic number, because the mean of its divisors is an integer number (21218740326).

Almost surely, 2^138090214615 is an apocalyptic number.

138090214615 is a deficient number, since it is larger than the sum of its proper divisors (31659707993).

138090214615 is an equidigital number, since it uses as much as digits as its factorization.

138090214615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673610849.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 138090214615 in words is "one hundred thirty-eight billion, ninety million, two hundred fourteen thousand, six hundred fifteen".