121374247 has 2 divisors, whose sum is σ = 121374248. Its totient is φ = 121374246.

The previous prime is 121374167. The next prime is 121374259. The reversal of 121374247 is 742473121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121374247 - 2⁷ = 121374119 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 (121374277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60687123 + 60687124.

It is an arithmetic number, because the mean of its divisors is an integer number (60687124).

Almost surely, 2^121374247 is an apocalyptic number.

121374247 is a deficient number, since it is larger than the sum of its proper divisors (1).

121374247 is an equidigital number, since it uses as much as digits as its factorization.

121374247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 31.

The square root of 121374247 is about 11016.9980938548. The cubic root of 121374247 is about 495.1181529335.

It can be divided in two parts, 12137 and 4247, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 121374247 in words is "one hundred twenty-one million, three hundred seventy-four thousand, two hundred forty-seven".