19134745 has 12 divisors (see below), whose sum is σ = 26710884. Its totient is φ = 13120800.

The previous prime is 19134721. The next prime is 19134757. The reversal of 19134745 is 54743191.

It can be written as a sum of positive squares in 2 ways, for example, as 11909401 + 7225344 = 3451^2 + 2688^2 .

It is not a de Polignac number, because 19134745 - 2⁷ = 19134617 is a prime.

It is a super-2 number, since 2×19134745² = 732276932430050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19134745.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38806 + ... + 39295.

It is an arithmetic number, because the mean of its divisors is an integer number (2225907).

Almost surely, 2^19134745 is an apocalyptic number.

It is an amenable number.

19134745 is a deficient number, since it is larger than the sum of its proper divisors (7576139).

19134745 is an equidigital number, since it uses as much as digits as its factorization.

19134745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78120 (or 78113 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 19134745 is about 4374.3279483825. The cubic root of 19134745 is about 267.4694756564.

The spelling of 19134745 in words is "nineteen million, one hundred thirty-four thousand, seven hundred forty-five".