102660101 has 2 divisors, whose sum is σ = 102660102. Its totient is φ = 102660100.

The previous prime is 102660091. The next prime is 102660121. The reversal of 102660101 is 101066201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94965025 + 7695076 = 9745^2 + 2774^2 .

It is a cyclic number.

It is not a de Polignac number, because 102660101 - 2¹⁸ = 102397957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102660101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102660121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51330050 + 51330051.

It is an arithmetic number, because the mean of its divisors is an integer number (51330051).

Almost surely, 2^102660101 is an apocalyptic number.

It is an amenable number.

102660101 is a deficient number, since it is larger than the sum of its proper divisors (1).

102660101 is an equidigital number, since it uses as much as digits as its factorization.

102660101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 102660101 is about 10132.1321053370. The cubic root of 102660101 is about 468.2386177540.

The spelling of 102660101 in words is "one hundred two million, six hundred sixty thousand, one hundred one".