100402579 has 2 divisors, whose sum is σ = 100402580. Its totient is φ = 100402578.

The previous prime is 100402543. The next prime is 100402597. The reversal of 100402579 is 975204001.

It is a happy number.

Together with next prime (100402597) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (975204001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100402579 - 2¹⁵ = 100369811 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100402079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50201289 + 50201290.

It is an arithmetic number, because the mean of its divisors is an integer number (50201290).

Almost surely, 2^100402579 is an apocalyptic number.

100402579 is a deficient number, since it is larger than the sum of its proper divisors (1).

100402579 is an equidigital number, since it uses as much as digits as its factorization.

100402579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 100402579 is about 10020.1087319450. The cubic root of 100402579 is about 464.7809181098.

The spelling of 100402579 in words is "one hundred million, four hundred two thousand, five hundred seventy-nine".