100620073 has 2 divisors, whose sum is σ = 100620074. Its totient is φ = 100620072.

The previous prime is 100620071. The next prime is 100620119. The reversal of 100620073 is 370026001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51451929 + 49168144 = 7173^2 + 7012^2 .

It is a cyclic number.

It is not a de Polignac number, because 100620073 - 2¹ = 100620071 is a prime.

Together with 100620071, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 100620073.

It is not a weakly prime, because it can be changed into another prime (100620071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50310036 + 50310037.

It is an arithmetic number, because the mean of its divisors is an integer number (50310037).

Almost surely, 2^100620073 is an apocalyptic number.

It is an amenable number.

100620073 is a deficient number, since it is larger than the sum of its proper divisors (1).

100620073 is an equidigital number, since it uses as much as digits as its factorization.

100620073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 100620073 is about 10030.9557371170. The cubic root of 100620073 is about 465.1162818607.

Adding to 100620073 its reverse (370026001), we get a palindrome (470646074).

The spelling of 100620073 in words is "one hundred million, six hundred twenty thousand, seventy-three".