19230985 has 4 divisors (see below), whose sum is σ = 23077188. Its totient is φ = 15384784.

The previous prime is 19230971. The next prime is 19231001. The reversal of 19230985 is 58903291.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58903291 = 401 ⋅146891.

It can be written as a sum of positive squares in 2 ways, for example, as 15178816 + 4052169 = 3896^2 + 2013^2 .

It is a cyclic number.

It is not a de Polignac number, because 19230985 - 2¹³ = 19222793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1923094 + ... + 1923103.

It is an arithmetic number, because the mean of its divisors is an integer number (5769297).

Almost surely, 2^19230985 is an apocalyptic number.

It is an amenable number.

19230985 is a deficient number, since it is larger than the sum of its proper divisors (3846203).

19230985 is an equidigital number, since it uses as much as digits as its factorization.

19230985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846202.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 19230985 is about 4385.3146979436. The cubic root of 19230985 is about 267.9171469212.

The spelling of 19230985 in words is "nineteen million, two hundred thirty thousand, nine hundred eighty-five".