100978373 has 2 divisors, whose sum is σ = 100978374. Its totient is φ = 100978372.

The previous prime is 100978321. The next prime is 100978379. The reversal of 100978373 is 373879001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50951044 + 50027329 = 7138^2 + 7073^2 .

It is an emirp because it is prime and its reverse (373879001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100978373 - 2⁶ = 100978309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100978379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50489186 + 50489187.

It is an arithmetic number, because the mean of its divisors is an integer number (50489187).

Almost surely, 2^100978373 is an apocalyptic number.

It is an amenable number.

100978373 is a deficient number, since it is larger than the sum of its proper divisors (1).

100978373 is an equidigital number, since it uses as much as digits as its factorization.

100978373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 100978373 is about 10048.7995800494. The cubic root of 100978373 is about 465.6677084258.

The spelling of 100978373 in words is "one hundred million, nine hundred seventy-eight thousand, three hundred seventy-three".