121451347 has 2 divisors, whose sum is σ = 121451348. Its totient is φ = 121451346.

The previous prime is 121451311. The next prime is 121451359. The reversal of 121451347 is 743154121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121451347 - 2⁷ = 121451219 is a prime.

It is a super-2 number, since 2×121451347² = 29500859376228818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121451377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60725673 + 60725674.

It is an arithmetic number, because the mean of its divisors is an integer number (60725674).

Almost surely, 2^121451347 is an apocalyptic number.

121451347 is a deficient number, since it is larger than the sum of its proper divisors (1).

121451347 is an equidigital number, since it uses as much as digits as its factorization.

121451347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

The square root of 121451347 is about 11020.4966766476. The cubic root of 121451347 is about 495.2229679456. Note that the first 3 decimals are identical.

The spelling of 121451347 in words is "one hundred twenty-one million, four hundred fifty-one thousand, three hundred forty-seven".