120692281 has 2 divisors, whose sum is σ = 120692282. Its totient is φ = 120692280.

The previous prime is 120692279. The next prime is 120692303. The reversal of 120692281 is 182296021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78234025 + 42458256 = 8845^2 + 6516^2 .

It is an emirp because it is prime and its reverse (182296021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120692281 - 2¹ = 120692279 is a prime.

It is a super-2 number, since 2×120692281² = 29133253385965922, which contains 22 as substring.

Together with 120692279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (120692251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60346140 + 60346141.

It is an arithmetic number, because the mean of its divisors is an integer number (60346141).

Almost surely, 2^120692281 is an apocalyptic number.

It is an amenable number.

120692281 is a deficient number, since it is larger than the sum of its proper divisors (1).

120692281 is an equidigital number, since it uses as much as digits as its factorization.

120692281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 120692281 is about 10986.0038685593. The cubic root of 120692281 is about 494.1891032428.

The spelling of 120692281 in words is "one hundred twenty million, six hundred ninety-two thousand, two hundred eighty-one".