100120037 has 2 divisors, whose sum is σ = 100120038. Its totient is φ = 100120036.

The previous prime is 100120003. The next prime is 100120057. The reversal of 100120037 is 730021001.

It is a Cunningham number, because it is equal to 10006²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100120036 + 1 = 10006^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 100120037 - 2¹⁸ = 99857893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100120057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060018 + 50060019.

It is an arithmetic number, because the mean of its divisors is an integer number (50060019).

Almost surely, 2^100120037 is an apocalyptic number.

It is an amenable number.

100120037 is a deficient number, since it is larger than the sum of its proper divisors (1).

100120037 is an equidigital number, since it uses as much as digits as its factorization.

100120037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 100120037 is about 10006.0000499700. Note that the first 4 decimals coincide. The cubic root of 100120037 is about 464.3445298992.

Adding to 100120037 its reverse (730021001), we get a palindrome (830141038).

The spelling of 100120037 in words is "one hundred million, one hundred twenty thousand, thirty-seven".