102195761 has 2 divisors, whose sum is σ = 102195762. Its totient is φ = 102195760.

The previous prime is 102195749. The next prime is 102195773. The reversal of 102195761 is 167591201.

It is a balanced prime because it is at equal distance from previous prime (102195749) and next prime (102195773).

It can be written as a sum of positive squares in only one way, i.e., 102010000 + 185761 = 10100^2 + 431^2 .

It is a cyclic number.

It is not a de Polignac number, because 102195761 - 2⁶ = 102195697 is a prime.

It is not a weakly prime, because it can be changed into another prime (102195791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51097880 + 51097881.

It is an arithmetic number, because the mean of its divisors is an integer number (51097881).

Almost surely, 2^102195761 is an apocalyptic number.

It is an amenable number.

102195761 is a deficient number, since it is larger than the sum of its proper divisors (1).

102195761 is an equidigital number, since it uses as much as digits as its factorization.

102195761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 32.

The square root of 102195761 is about 10109.1919063791. The cubic root of 102195761 is about 467.5315902281.

The spelling of 102195761 in words is "one hundred two million, one hundred ninety-five thousand, seven hundred sixty-one".