121153247 has 2 divisors, whose sum is σ = 121153248. Its totient is φ = 121153246.

The previous prime is 121153181. The next prime is 121153261. The reversal of 121153247 is 742351121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121153247 - 2¹⁶ = 121087711 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121153147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60576623 + 60576624.

It is an arithmetic number, because the mean of its divisors is an integer number (60576624).

Almost surely, 2^121153247 is an apocalyptic number.

121153247 is a deficient number, since it is larger than the sum of its proper divisors (1).

121153247 is an equidigital number, since it uses as much as digits as its factorization.

121153247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 26.

The square root of 121153247 is about 11006.9635685778. The cubic root of 121153247 is about 494.8174642410.

The spelling of 121153247 in words is "one hundred twenty-one million, one hundred fifty-three thousand, two hundred forty-seven".