121396747 has 2 divisors, whose sum is σ = 121396748. Its totient is φ = 121396746.

The previous prime is 121396739. The next prime is 121396799. The reversal of 121396747 is 747693121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121396747 - 2³ = 121396739 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121366747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60698373 + 60698374.

It is an arithmetic number, because the mean of its divisors is an integer number (60698374).

Almost surely, 2^121396747 is an apocalyptic number.

121396747 is a deficient number, since it is larger than the sum of its proper divisors (1).

121396747 is an equidigital number, since it uses as much as digits as its factorization.

121396747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 40.

The square root of 121396747 is about 11018.0191958446. The cubic root of 121396747 is about 495.1487455576.

The spelling of 121396747 in words is "one hundred twenty-one million, three hundred ninety-six thousand, seven hundred forty-seven".