19089130 has 16 divisors (see below), whose sum is σ = 36381960. Its totient is φ = 7186432.

The previous prime is 19089089. The next prime is 19089139. The reversal of 19089130 is 3198091.

It can be written as a sum of positive squares in 4 ways, for example, as 19035769 + 53361 = 4363^2 + 231^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19089092 and 19089101.

It is not an unprimeable number, because it can be changed into a prime (19089139) 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, 55975 + ... + 56314.

Almost surely, 2^19089130 is an apocalyptic number.

19089130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19089130 is a deficient number, since it is larger than the sum of its proper divisors (17292830).

19089130 is a wasteful number, since it uses less digits than its factorization.

19089130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112313.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 19089130 is about 4369.1108935343. The cubic root of 19089130 is about 267.2567678667.

The spelling of 19089130 in words is "nineteen million, eighty-nine thousand, one hundred thirty".