71892101 has 2 divisors, whose sum is σ = 71892102. Its totient is φ = 71892100.

The previous prime is 71892097. The next prime is 71892109. The reversal of 71892101 is 10129817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36012001 + 35880100 = 6001^2 + 5990^2 .

It is an emirp because it is prime and its reverse (10129817) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71892101 - 2² = 71892097 is a prime.

It is a Sophie Germain 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 (71892109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35946050 + 35946051.

It is an arithmetic number, because the mean of its divisors is an integer number (35946051).

Almost surely, 2^71892101 is an apocalyptic number.

It is an amenable number.

71892101 is a deficient number, since it is larger than the sum of its proper divisors (1).

71892101 is an equidigital number, since it uses as much as digits as its factorization.

71892101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 71892101 is about 8478.9209808796. The cubic root of 71892101 is about 415.8088468582.

The spelling of 71892101 in words is "seventy-one million, eight hundred ninety-two thousand, one hundred one".