102672281 has 2 divisors, whose sum is σ = 102672282. Its totient is φ = 102672280.

The previous prime is 102672247. The next prime is 102672313. The reversal of 102672281 is 182276201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76825225 + 25847056 = 8765^2 + 5084^2 .

It is a cyclic number.

It is not a de Polignac number, because 102672281 - 2¹⁸ = 102410137 is a prime.

It is a super-2 number, since 2×102672281² = 21083194571485922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102662281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51336140 + 51336141.

It is an arithmetic number, because the mean of its divisors is an integer number (51336141).

Almost surely, 2^102672281 is an apocalyptic number.

It is an amenable number.

102672281 is a deficient number, since it is larger than the sum of its proper divisors (1).

102672281 is an equidigital number, since it uses as much as digits as its factorization.

102672281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 102672281 is about 10132.7331456029. The cubic root of 102672281 is about 468.2571349149.

The spelling of 102672281 in words is "one hundred two million, six hundred seventy-two thousand, two hundred eighty-one".