102354661 has 2 divisors, whose sum is σ = 102354662. Its totient is φ = 102354660.

The previous prime is 102354647. The next prime is 102354667. The reversal of 102354661 is 166453201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93973636 + 8381025 = 9694^2 + 2895^2 .

It is a cyclic number.

It is not a de Polignac number, because 102354661 - 2⁹ = 102354149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102354667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51177330 + 51177331.

It is an arithmetic number, because the mean of its divisors is an integer number (51177331).

Almost surely, 2^102354661 is an apocalyptic number.

It is an amenable number.

102354661 is a deficient number, since it is larger than the sum of its proper divisors (1).

102354661 is an equidigital number, since it uses as much as digits as its factorization.

102354661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 102354661 is about 10117.0480378419. The cubic root of 102354661 is about 467.7737799833.

The spelling of 102354661 in words is "one hundred two million, three hundred fifty-four thousand, six hundred sixty-one".