100100425 has 12 divisors (see below), whose sum is σ = 124301196. Its totient is φ = 79966400.

The previous prime is 100100423. The next prime is 100100461. The reversal of 100100425 is 524001001.

It can be written as a sum of positive squares in 6 ways, for example, as 13461561 + 86638864 = 3669^2 + 9308^2 .

It is not a de Polignac number, because 100100425 - 2¹ = 100100423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100100423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18087 + ... + 22963.

It is an arithmetic number, because the mean of its divisors is an integer number (10358433).

Almost surely, 2^100100425 is an apocalyptic number.

It is an amenable number.

100100425 is a deficient number, since it is larger than the sum of its proper divisors (24200771).

100100425 is an equidigital number, since it uses as much as digits as its factorization.

100100425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5708 (or 5703 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 100100425 is about 10005.0199899850. The cubic root of 100100425 is about 464.3142085640.

Adding to 100100425 its reverse (524001001), we get a palindrome (624101426).

The spelling of 100100425 in words is "one hundred million, one hundred thousand, four hundred twenty-five".