101968139 has 8 divisors (see below), whose sum is σ = 125499360. Its totient is φ = 80678016.

The previous prime is 101968127. The next prime is 101968151. The reversal of 101968139 is 931869101.

It is an interprime number because it is at equal distance from previous prime (101968127) and next prime (101968151).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101968139 - 2²⁴ = 85190923 is a prime.

It is a super-2 number, since 2×101968139² = 20795002742246642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101968739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560174 + ... + 560355.

It is an arithmetic number, because the mean of its divisors is an integer number (15687420).

Almost surely, 2^101968139 is an apocalyptic number.

101968139 is a deficient number, since it is larger than the sum of its proper divisors (23531221).

101968139 is a wasteful number, since it uses less digits than its factorization.

101968139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120549.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 101968139 is about 10097.9274606228. The cubic root of 101968139 is about 467.1842190550.

The spelling of 101968139 in words is "one hundred one million, nine hundred sixty-eight thousand, one hundred thirty-nine".