101626421 has 8 divisors (see below), whose sum is σ = 115204320. Its totient is φ = 88871472.

The previous prime is 101626373. The next prime is 101626423. The reversal of 101626421 is 124626101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101626421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101626423) 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, 205475 + ... + 205968.

It is an arithmetic number, because the mean of its divisors is an integer number (14400540).

Almost surely, 2^101626421 is an apocalyptic number.

It is an amenable number.

101626421 is a deficient number, since it is larger than the sum of its proper divisors (13577899).

101626421 is a wasteful number, since it uses less digits than its factorization.

101626421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411475.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 101626421 is about 10080.9930562420. The cubic root of 101626421 is about 466.6617554472.

The spelling of 101626421 in words is "one hundred one million, six hundred twenty-six thousand, four hundred twenty-one".