19265162401 has 3 divisors (see below), whose sum is σ = 19265301201. Its totient is φ = 19265023602.

The previous prime is 19265162393. The next prime is 19265162447. The reversal of 19265162401 is 10426156291.

The square root of 19265162401 is 138799.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 19265162401 - 2³ = 19265162393 is a prime.

It is a super-2 number, since 2×19265162401² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19265169401) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 69400 + ... + 208198.

It is an arithmetic number, because the mean of its divisors is an integer number (6421767067).

Almost surely, 2^19265162401 is an apocalyptic number.

19265162401 is the 138799-th square number.

19265162401 is the 69400-th centered octagonal number.

It is an amenable number.

19265162401 is a deficient number, since it is larger than the sum of its proper divisors (138800).

19265162401 is an frugal number, since it uses more digits than its factorization.

19265162401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277598 (or 138799 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 19265162401 in words is "nineteen billion, two hundred sixty-five million, one hundred sixty-two thousand, four hundred one".