120660247 has 2 divisors, whose sum is σ = 120660248. Its totient is φ = 120660246.

The previous prime is 120660229. The next prime is 120660263. The reversal of 120660247 is 742066021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120660247 - 2¹¹ = 120658199 is a prime.

It is a super-2 number, since 2×120660247² = 29117790412202018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120660217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60330123 + 60330124.

It is an arithmetic number, because the mean of its divisors is an integer number (60330124).

Almost surely, 2^120660247 is an apocalyptic number.

120660247 is a deficient number, since it is larger than the sum of its proper divisors (1).

120660247 is an equidigital number, since it uses as much as digits as its factorization.

120660247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 120660247 is about 10984.5458258410. The cubic root of 120660247 is about 494.1453770149.

The spelling of 120660247 in words is "one hundred twenty million, six hundred sixty thousand, two hundred forty-seven".