100425401 has 4 divisors (see below), whose sum is σ = 100695012. Its totient is φ = 100155792.

The previous prime is 100425397. The next prime is 100425421. The reversal of 100425401 is 104524001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104524001 = 37 ⋅2824973.

It can be written as a sum of positive squares in 2 ways, for example, as 76650025 + 23775376 = 8755^2 + 4876^2 .

It is a cyclic number.

It is not a de Polignac number, because 100425401 - 2² = 100425397 is a prime.

It is a super-2 number, since 2×100425401² = 20170522332021602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100425401.

It is not an unprimeable number, because it can be changed into a prime (100425421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134246 + ... + 134991.

It is an arithmetic number, because the mean of its divisors is an integer number (25173753).

Almost surely, 2^100425401 is an apocalyptic number.

It is an amenable number.

100425401 is a deficient number, since it is larger than the sum of its proper divisors (269611).

100425401 is an equidigital number, since it uses as much as digits as its factorization.

100425401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269610.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 100425401 is about 10021.2474772356. The cubic root of 100425401 is about 464.8161311048.

Adding to 100425401 its reverse (104524001), we get a palindrome (204949402).

The spelling of 100425401 in words is "one hundred million, four hundred twenty-five thousand, four hundred one".