19117064 has 8 divisors (see below), whose sum is σ = 35844510. Its totient is φ = 9558528.

The previous prime is 19117057. The next prime is 19117067. The reversal of 19117064 is 46071191.

It can be written as a sum of positive squares in only one way, i.e., 19096900 + 20164 = 4370^2 + 142^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (19117067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1194809 + ... + 1194824.

Almost surely, 2^19117064 is an apocalyptic number.

It is an amenable number.

19117064 is a deficient number, since it is larger than the sum of its proper divisors (16727446).

19117064 is a wasteful number, since it uses less digits than its factorization.

19117064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389639 (or 2389635 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 19117064 is about 4372.3064851403. The cubic root of 19117064 is about 267.3870673609.

The spelling of 19117064 in words is "nineteen million, one hundred seventeen thousand, sixty-four".