100242479 has 2 divisors, whose sum is σ = 100242480. Its totient is φ = 100242478.

The previous prime is 100242449. The next prime is 100242511. The reversal of 100242479 is 974242001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100242479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100242409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50121239 + 50121240.

It is an arithmetic number, because the mean of its divisors is an integer number (50121240).

Almost surely, 2^100242479 is an apocalyptic number.

100242479 is a deficient number, since it is larger than the sum of its proper divisors (1).

100242479 is an equidigital number, since it uses as much as digits as its factorization.

100242479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 100242479 is about 10012.1166093888. The cubic root of 100242479 is about 464.5337431452.

The spelling of 100242479 in words is "one hundred million, two hundred forty-two thousand, four hundred seventy-nine".