100100402 has 8 divisors (see below), whose sum is σ = 155328300. Its totient is φ = 48324304.

The previous prime is 100100401. The next prime is 100100423. The reversal of 100100402 is 204001001.

It can be written as a sum of positive squares in 2 ways, for example, as 98585041 + 1515361 = 9929^2 + 1231^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 100100402.

It is not an unprimeable number, because it can be changed into a prime (100100401) 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, 862877 + ... + 862992.

Almost surely, 2^100100402 is an apocalyptic number.

100100402 is a deficient number, since it is larger than the sum of its proper divisors (55227898).

100100402 is a wasteful number, since it uses less digits than its factorization.

100100402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725900.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 100100402 is about 10005.0188405620. The cubic root of 100100402 is about 464.3141730023.

Adding to 100100402 its reverse (204001001), we get a palindrome (304101403).

The spelling of 100100402 in words is "one hundred million, one hundred thousand, four hundred two".