100423529 has 2 divisors, whose sum is σ = 100423530. Its totient is φ = 100423528.

The previous prime is 100423511. The next prime is 100423541. The reversal of 100423529 is 925324001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54834025 + 45589504 = 7405^2 + 6752^2 .

It is a cyclic number.

It is not a de Polignac number, because 100423529 - 2²⁰ = 99374953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100423498 and 100423507.

It is not a weakly prime, because it can be changed into another prime (100423579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50211764 + 50211765.

It is an arithmetic number, because the mean of its divisors is an integer number (50211765).

Almost surely, 2^100423529 is an apocalyptic number.

It is an amenable number.

100423529 is a deficient number, since it is larger than the sum of its proper divisors (1).

100423529 is an equidigital number, since it uses as much as digits as its factorization.

100423529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 100423529 is about 10021.1540752550. The cubic root of 100423529 is about 464.8132429204.

The spelling of 100423529 in words is "one hundred million, four hundred twenty-three thousand, five hundred twenty-nine".