19119145 has 8 divisors (see below), whose sum is σ = 23154120. Its totient is φ = 15154560.

The previous prime is 19119103. The next prime is 19119151. The reversal of 19119145 is 54191191.

It can be written as a sum of positive squares in 4 ways, for example, as 6594624 + 12524521 = 2568^2 + 3539^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19119145 - 2⁷ = 19119017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16996 + ... + 18085.

It is an arithmetic number, because the mean of its divisors is an integer number (2894265).

Almost surely, 2^19119145 is an apocalyptic number.

It is an amenable number.

19119145 is a deficient number, since it is larger than the sum of its proper divisors (4034975).

19119145 is a wasteful number, since it uses less digits than its factorization.

19119145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35195.

The product of its digits is 1620, while the sum is 31.

The square root of 19119145 is about 4372.5444537477. The cubic root of 19119145 is about 267.3967692046.

The spelling of 19119145 in words is "nineteen million, one hundred nineteen thousand, one hundred forty-five".