101982239 has 2 divisors, whose sum is σ = 101982240. Its totient is φ = 101982238.

The previous prime is 101982233. The next prime is 101982263. The reversal of 101982239 is 932289101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101982239 - 2⁸ = 101981983 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 101982199 and 101982208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101982233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50991119 + 50991120.

It is an arithmetic number, because the mean of its divisors is an integer number (50991120).

Almost surely, 2^101982239 is an apocalyptic number.

101982239 is a deficient number, since it is larger than the sum of its proper divisors (1).

101982239 is an equidigital number, since it uses as much as digits as its factorization.

101982239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 101982239 is about 10098.6255995556. The cubic root of 101982239 is about 467.2057519049.

The spelling of 101982239 in words is "one hundred one million, nine hundred eighty-two thousand, two hundred thirty-nine".