19134986 has 16 divisors (see below), whose sum is σ = 31286304. Its totient is φ = 8724144.

The previous prime is 19134977. The next prime is 19134989. The reversal of 19134986 is 68943191.

It is a super-2 number, since 2×19134986² = 732295378440392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19134989) 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, 2276 + ... + 6591.

It is an arithmetic number, because the mean of its divisors is an integer number (1955394).

Almost surely, 2^19134986 is an apocalyptic number.

19134986 is a deficient number, since it is larger than the sum of its proper divisors (12151318).

19134986 is a wasteful number, since it uses less digits than its factorization.

19134986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8965.

The product of its digits is 46656, while the sum is 41.

The square root of 19134986 is about 4374.3554953844. The cubic root of 19134986 is about 267.4705985678.

The spelling of 19134986 in words is "nineteen million, one hundred thirty-four thousand, nine hundred eighty-six".