1417825921 has 6 divisors (see below), whose sum is σ = 1468403222. Its totient is φ = 1368934560.

The previous prime is 1417825919. The next prime is 1417825943. The reversal of 1417825921 is 1295287141.

It can be written as a sum of positive squares in 3 ways, for example, as 36663025 + 1381162896 = 6055^2 + 37164^2 .

It is not a de Polignac number, because 1417825921 - 2¹ = 1417825919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1417825621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 842100 + ... + 843781.

Almost surely, 2^1417825921 is an apocalyptic number.

It is an amenable number.

1417825921 is a deficient number, since it is larger than the sum of its proper divisors (50577301).

1417825921 is an equidigital number, since it uses as much as digits as its factorization.

1417825921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685939 (or 1685910 counting only the distinct ones).

The product of its digits is 40320, while the sum is 40.

The square root of 1417825921 is about 37654.0292797464. The cubic root of 1417825921 is about 1123.4169460452.

The spelling of 1417825921 in words is "one billion, four hundred seventeen million, eight hundred twenty-five thousand, nine hundred twenty-one".