101243259 has 12 divisors (see below), whose sum is σ = 157489696. Its totient is φ = 62303472.

The previous prime is 101243239. The next prime is 101243299. The reversal of 101243259 is 952342101.

It is not a de Polignac number, because 101243259 - 2¹¹ = 101241211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101243239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 432547 + ... + 432780.

Almost surely, 2^101243259 is an apocalyptic number.

101243259 is a deficient number, since it is larger than the sum of its proper divisors (56246437).

101243259 is a wasteful number, since it uses less digits than its factorization.

101243259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865346 (or 865343 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 101243259 is about 10061.9709301906. The cubic root of 101243259 is about 466.0745320318.

The spelling of 101243259 in words is "one hundred one million, two hundred forty-three thousand, two hundred fifty-nine".