76215101 has 2 divisors, whose sum is σ = 76215102. Its totient is φ = 76215100.

The previous prime is 76215043. The next prime is 76215107. The reversal of 76215101 is 10151267.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56625625 + 19589476 = 7525^2 + 4426^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76215101 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76215107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38107550 + 38107551.

It is an arithmetic number, because the mean of its divisors is an integer number (38107551).

Almost surely, 2^76215101 is an apocalyptic number.

It is an amenable number.

76215101 is a deficient number, since it is larger than the sum of its proper divisors (1).

76215101 is an equidigital number, since it uses as much as digits as its factorization.

76215101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 76215101 is about 8730.1260586546. The cubic root of 76215101 is about 423.9816003793.

Adding to 76215101 its reverse (10151267), we get a palindrome (86366368).

The spelling of 76215101 in words is "seventy-six million, two hundred fifteen thousand, one hundred one".