138750001511 has 8 divisors (see below), whose sum is σ = 151510462848. Its totient is φ = 126014011000.

The previous prime is 138750001499. The next prime is 138750001541. The reversal of 138750001511 is 115100057831.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138750001511 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 (138750001541) 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, 6105845 + ... + 6128526.

It is an arithmetic number, because the mean of its divisors is an integer number (18938807856).

Almost surely, 2^138750001511 is an apocalyptic number.

138750001511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

138750001511 is a deficient number, since it is larger than the sum of its proper divisors (12760461337).

138750001511 is a wasteful number, since it uses less digits than its factorization.

138750001511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12235413.

The product of its (nonzero) digits is 4200, while the sum is 32.

The spelling of 138750001511 in words is "one hundred thirty-eight billion, seven hundred fifty million, one thousand, five hundred eleven".