19125612 has 96 divisors (see below), whose sum is σ = 57335040. Its totient is φ = 5448960.

The previous prime is 19125577. The next prime is 19125637. The reversal of 19125612 is 21652191.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 31 ways as a sum of consecutive naturals, for example, 19723 + ... + 20669.

It is an arithmetic number, because the mean of its divisors is an integer number (597240).

Almost surely, 2^19125612 is an apocalyptic number.

19125612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19125612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28667520).

19125612 is an abundant number, since it is smaller than the sum of its proper divisors (38209428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19125612 is a wasteful number, since it uses less digits than its factorization.

19125612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988 (or 980 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 19125612 is about 4373.2838919970. The cubic root of 19125612 is about 267.4269145549.

The spelling of 19125612 in words is "nineteen million, one hundred twenty-five thousand, six hundred twelve".