72605101 has 2 divisors, whose sum is σ = 72605102. Its totient is φ = 72605100.

The previous prime is 72605081. The next prime is 72605119. The reversal of 72605101 is 10150627.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72233001 + 372100 = 8499^2 + 610^2 .

It is an emirp because it is prime and its reverse (10150627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72605101 - 2⁹ = 72604589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72605161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36302550 + 36302551.

It is an arithmetic number, because the mean of its divisors is an integer number (36302551).

Almost surely, 2^72605101 is an apocalyptic number.

It is an amenable number.

72605101 is a deficient number, since it is larger than the sum of its proper divisors (1).

72605101 is an equidigital number, since it uses as much as digits as its factorization.

72605101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 72605101 is about 8520.8626910660. The cubic root of 72605101 is about 417.1789416182.

Adding to 72605101 its reverse (10150627), we get a palindrome (82755728).

The spelling of 72605101 in words is "seventy-two million, six hundred five thousand, one hundred one".