100042559 has 2 divisors, whose sum is σ = 100042560. Its totient is φ = 100042558.

The previous prime is 100042541. The next prime is 100042573. The reversal of 100042559 is 955240001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100042559 - 2⁸ = 100042303 is a prime.

It is a super-2 number, since 2×100042559² = 20017027222536962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100042259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50021279 + 50021280.

It is an arithmetic number, because the mean of its divisors is an integer number (50021280).

Almost surely, 2^100042559 is an apocalyptic number.

100042559 is a deficient number, since it is larger than the sum of its proper divisors (1).

100042559 is an equidigital number, since it uses as much as digits as its factorization.

100042559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 100042559 is about 10002.1277236396. The cubic root of 100042559 is about 464.2247211486.

The spelling of 100042559 in words is "one hundred million, forty-two thousand, five hundred fifty-nine".