19118053 has 4 divisors (see below), whose sum is σ = 19130188. Its totient is φ = 19105920.

The previous prime is 19118027. The next prime is 19118059. The reversal of 19118053 is 35081191.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1292769 + 17825284 = 1137^2 + 4222^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19118053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19118059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3276 + ... + 6997.

It is an arithmetic number, because the mean of its divisors is an integer number (4782547).

Almost surely, 2^19118053 is an apocalyptic number.

It is an amenable number.

19118053 is a deficient number, since it is larger than the sum of its proper divisors (12135).

19118053 is a wasteful number, since it uses less digits than its factorization.

19118053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12134.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 19118053 is about 4372.4195818791. The cubic root of 19118053 is about 267.3916782720.

The spelling of 19118053 in words is "nineteen million, one hundred eighteen thousand, fifty-three".