19155230 has 32 divisors (see below), whose sum is σ = 36560160. Its totient is φ = 7205760.

The previous prime is 19155229. The next prime is 19155239. The reversal of 19155230 is 3255191.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 19155230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19155239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34112 + ... + 34668.

It is an arithmetic number, because the mean of its divisors is an integer number (1142505).

Almost surely, 2^19155230 is an apocalyptic number.

19155230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19155230 is a deficient number, since it is larger than the sum of its proper divisors (17404930).

19155230 is a wasteful number, since it uses less digits than its factorization.

19155230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 19155230 is about 4376.6688245742. The cubic root of 19155230 is about 267.5648894899.

The spelling of 19155230 in words is "nineteen million, one hundred fifty-five thousand, two hundred thirty".