19225146 has 32 divisors (see below), whose sum is σ = 40674816. Its totient is φ = 6048000.

The previous prime is 19225139. The next prime is 19225159. The reversal of 19225146 is 64152291.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6366 + ... + 8886.

It is an arithmetic number, because the mean of its divisors is an integer number (1271088).

Almost surely, 2^19225146 is an apocalyptic number.

19225146 is an abundant number, since it is smaller than the sum of its proper divisors (21449670).

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

19225146 is a wasteful number, since it uses less digits than its factorization.

19225146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598.

The product of its digits is 4320, while the sum is 30.

The square root of 19225146 is about 4384.6489027059. The cubic root of 19225146 is about 267.8900287648.

The spelling of 19225146 in words is "nineteen million, two hundred twenty-five thousand, one hundred forty-six".