19100532139 has 8 divisors (see below), whose sum is σ = 20667294032. Its totient is φ = 17547697440.

The previous prime is 19100532133. The next prime is 19100532149. The reversal of 19100532139 is 93123500191.

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

It is not a de Polignac number, because 19100532139 - 2⁹ = 19100531627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19100532133) 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, 3478944 + ... + 3484429.

It is an arithmetic number, because the mean of its divisors is an integer number (2583411754).

Almost surely, 2^19100532139 is an apocalyptic number.

19100532139 is a deficient number, since it is larger than the sum of its proper divisors (1566761893).

19100532139 is a wasteful number, since it uses less digits than its factorization.

19100532139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6963597.

The product of its (nonzero) digits is 7290, while the sum is 34.

The spelling of 19100532139 in words is "nineteen billion, one hundred million, five hundred thirty-two thousand, one hundred thirty-nine".