102090791501 has 2 divisors, whose sum is σ = 102090791502. Its totient is φ = 102090791500.

The previous prime is 102090791459. The next prime is 102090791503. The reversal of 102090791501 is 105197090201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79800600100 + 22290191401 = 282490^2 + 149299^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102090791501 is a prime.

Together with 102090791503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102090791503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51045395750 + 51045395751.

It is an arithmetic number, because the mean of its divisors is an integer number (51045395751).

Almost surely, 2^102090791501 is an apocalyptic number.

It is an amenable number.

102090791501 is a deficient number, since it is larger than the sum of its proper divisors (1).

102090791501 is an equidigital number, since it uses as much as digits as its factorization.

102090791501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 35.

The spelling of 102090791501 in words is "one hundred two billion, ninety million, seven hundred ninety-one thousand, five hundred one".