19139056 has 10 divisors (see below), whose sum is σ = 37081952. Its totient is φ = 9569520.

The previous prime is 19139039. The next prime is 19139063. The reversal of 19139056 is 65093191.

It is a super-2 number, since 2×19139056² = 732606929142272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598080 + ... + 598111.

Almost surely, 2^19139056 is an apocalyptic number.

19139056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19139056 is a deficient number, since it is larger than the sum of its proper divisors (17942896).

19139056 is a wasteful number, since it uses less digits than its factorization.

19139056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196199 (or 1196193 counting only the distinct ones).

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

The square root of 19139056 is about 4374.8206820394. The cubic root of 19139056 is about 267.4895608352.

The spelling of 19139056 in words is "nineteen million, one hundred thirty-nine thousand, fifty-six".