19046139 has 32 divisors (see below), whose sum is σ = 30965760. Its totient is φ = 10176672.

The previous prime is 19046117. The next prime is 19046143. The reversal of 19046139 is 93164091.

It is not a de Polignac number, because 19046139 - 2¹² = 19042043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19046179) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22282 + ... + 23120.

It is an arithmetic number, because the mean of its divisors is an integer number (967680).

Almost surely, 2^19046139 is an apocalyptic number.

19046139 is a deficient number, since it is larger than the sum of its proper divisors (11919621).

19046139 is a wasteful number, since it uses less digits than its factorization.

19046139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 19046139 is about 4364.1882406697. The cubic root of 19046139 is about 267.0559856788.

The spelling of 19046139 in words is "nineteen million, forty-six thousand, one hundred thirty-nine".