73815101 has 2 divisors, whose sum is σ = 73815102. Its totient is φ = 73815100.

The previous prime is 73815089. The next prime is 73815113. The reversal of 73815101 is 10151837.

It is a balanced prime because it is at equal distance from previous prime (73815089) and next prime (73815113).

It can be written as a sum of positive squares in only one way, i.e., 48302500 + 25512601 = 6950^2 + 5051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73815101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73715101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36907550 + 36907551.

It is an arithmetic number, because the mean of its divisors is an integer number (36907551).

Almost surely, 2^73815101 is an apocalyptic number.

It is an amenable number.

73815101 is a deficient number, since it is larger than the sum of its proper divisors (1).

73815101 is an equidigital number, since it uses as much as digits as its factorization.

73815101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 73815101 is about 8591.5715093340. The cubic root of 73815101 is about 419.4836833773.

Adding to 73815101 its reverse (10151837), we get a palindrome (83966938).

The spelling of 73815101 in words is "seventy-three million, eight hundred fifteen thousand, one hundred one".