101243425 has 6 divisors (see below), whose sum is σ = 125541878. Its totient is φ = 80994720.

The previous prime is 101243413. The next prime is 101243453. The reversal of 101243425 is 524342101.

It can be written as a sum of positive squares in 3 ways, for example, as 19395216 + 81848209 = 4404^2 + 9047^2 .

It is not a de Polignac number, because 101243425 - 2¹⁵ = 101210657 is a prime.

It is a super-2 number, since 2×101243425² = 20500462211461250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101243396 and 101243405.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2024844 + ... + 2024893.

Almost surely, 2^101243425 is an apocalyptic number.

It is an amenable number.

101243425 is a deficient number, since it is larger than the sum of its proper divisors (24298453).

101243425 is an equidigital number, since it uses as much as digits as its factorization.

101243425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4049747 (or 4049742 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 101243425 is about 10061.9791790681. The cubic root of 101243425 is about 466.0747867593.

Adding to 101243425 its reverse (524342101), we get a palindrome (625585526).

The spelling of 101243425 in words is "one hundred one million, two hundred forty-three thousand, four hundred twenty-five".