138432154093 has 4 divisors (see below), whose sum is σ = 145718056960. Its totient is φ = 131146251228.

The previous prime is 138432154057. The next prime is 138432154099. The reversal of 138432154093 is 390451234831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 138432154093 - 2⁹ = 138432153581 is a prime.

It is a super-2 number, since 2×138432154093² (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 (138432154099) 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, 3642951405 + ... + 3642951442.

It is an arithmetic number, because the mean of its divisors is an integer number (36429514240).

Almost surely, 2^138432154093 is an apocalyptic number.

It is an amenable number.

138432154093 is a deficient number, since it is larger than the sum of its proper divisors (7285902867).

138432154093 is an equidigital number, since it uses as much as digits as its factorization.

138432154093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7285902866.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 138432154093 in words is "one hundred thirty-eight billion, four hundred thirty-two million, one hundred fifty-four thousand, ninety-three".