101263439 has 2 divisors, whose sum is σ = 101263440. Its totient is φ = 101263438.

The previous prime is 101263429. The next prime is 101263471. The reversal of 101263439 is 934362101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101263439 - 2⁴ = 101263423 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101263429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50631719 + 50631720.

It is an arithmetic number, because the mean of its divisors is an integer number (50631720).

Almost surely, 2^101263439 is an apocalyptic number.

101263439 is a deficient number, since it is larger than the sum of its proper divisors (1).

101263439 is an equidigital number, since it uses as much as digits as its factorization.

101263439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 101263439 is about 10062.9736658703. The cubic root of 101263439 is about 466.1054962636.

The spelling of 101263439 in words is "one hundred one million, two hundred sixty-three thousand, four hundred thirty-nine".