100402417 has 2 divisors, whose sum is σ = 100402418. Its totient is φ = 100402416.

The previous prime is 100402411. The next prime is 100402427. The reversal of 100402417 is 714204001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53012961 + 47389456 = 7281^2 + 6884^2 .

It is a cyclic number.

It is not a de Polignac number, because 100402417 - 2³ = 100402409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100402394 and 100402403.

It is not a weakly prime, because it can be changed into another prime (100402411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50201208 + 50201209.

It is an arithmetic number, because the mean of its divisors is an integer number (50201209).

Almost surely, 2^100402417 is an apocalyptic number.

It is an amenable number.

100402417 is a deficient number, since it is larger than the sum of its proper divisors (1).

100402417 is an equidigital number, since it uses as much as digits as its factorization.

100402417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 100402417 is about 10020.1006481971. The cubic root of 100402417 is about 464.7806681343.

Adding to 100402417 its reverse (714204001), we get a palindrome (814606418).

The spelling of 100402417 in words is "one hundred million, four hundred two thousand, four hundred seventeen".