100937021 has 2 divisors, whose sum is σ = 100937022. Its totient is φ = 100937020.

The previous prime is 100937009. The next prime is 100937029. The reversal of 100937021 is 120739001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86229796 + 14707225 = 9286^2 + 3835^2 .

It is an emirp because it is prime and its reverse (120739001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100937021 - 2¹⁴ = 100920637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100937029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50468510 + 50468511.

It is an arithmetic number, because the mean of its divisors is an integer number (50468511).

Almost surely, 2^100937021 is an apocalyptic number.

It is an amenable number.

100937021 is a deficient number, since it is larger than the sum of its proper divisors (1).

100937021 is an equidigital number, since it uses as much as digits as its factorization.

100937021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 100937021 is about 10046.7418101592. The cubic root of 100937021 is about 465.6041340198.

The spelling of 100937021 in words is "one hundred million, nine hundred thirty-seven thousand, twenty-one".