19230481 has 2 divisors, whose sum is σ = 19230482. Its totient is φ = 19230480.

The previous prime is 19230479. The next prime is 19230487. The reversal of 19230481 is 18403291.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19219456 + 11025 = 4384^2 + 105^2 .

It is an emirp because it is prime and its reverse (18403291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19230481 - 2¹ = 19230479 is a prime.

It is a super-2 number, since 2×19230481² = 739622798982722, which contains 22 as substring.

Together with 19230479, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19230487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9615240 + 9615241.

It is an arithmetic number, because the mean of its divisors is an integer number (9615241).

Almost surely, 2^19230481 is an apocalyptic number.

It is an amenable number.

19230481 is a deficient number, since it is larger than the sum of its proper divisors (1).

19230481 is an equidigital number, since it uses as much as digits as its factorization.

19230481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 19230481 is about 4385.2572330480. The cubic root of 19230481 is about 267.9148064028.

The spelling of 19230481 in words is "nineteen million, two hundred thirty thousand, four hundred eighty-one".