100451973 has 4 divisors (see below), whose sum is σ = 133935968. Its totient is φ = 66967980.

The previous prime is 100451959. The next prime is 100451977. The reversal of 100451973 is 379154001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 100451973 - 2⁵ = 100451941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100451973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100451977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16741993 + ... + 16741998.

It is an arithmetic number, because the mean of its divisors is an integer number (33483992).

Almost surely, 2^100451973 is an apocalyptic number.

It is an amenable number.

100451973 is a deficient number, since it is larger than the sum of its proper divisors (33483995).

100451973 is an equidigital number, since it uses as much as digits as its factorization.

100451973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33483994.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 100451973 is about 10022.5731725940. The cubic root of 100451973 is about 464.8571234066.

The spelling of 100451973 in words is "one hundred million, four hundred fifty-one thousand, nine hundred seventy-three".