101421719 has 12 divisors (see below), whose sum is σ = 119745144. Its totient is φ = 85632624.

The previous prime is 101421713. The next prime is 101421751. The reversal of 101421719 is 917124101.

It is not a de Polignac number, because 101421719 - 2²⁴ = 84644503 is a prime.

It is a super-2 number, since 2×101421719² = 20572730169829922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101421713) 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 11 ways as a sum of consecutive naturals, for example, 12164 + ... + 18729.

It is an arithmetic number, because the mean of its divisors is an integer number (9978762).

Almost surely, 2^101421719 is an apocalyptic number.

101421719 is a deficient number, since it is larger than the sum of its proper divisors (18323425).

101421719 is an equidigital number, since it uses as much as digits as its factorization.

101421719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30974 (or 30967 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 101421719 is about 10070.8350696454. The cubic root of 101421719 is about 466.3482188555.

The spelling of 101421719 in words is "one hundred one million, four hundred twenty-one thousand, seven hundred nineteen".