121465147 has 2 divisors, whose sum is σ = 121465148. Its totient is φ = 121465146.

The previous prime is 121465109. The next prime is 121465151. The reversal of 121465147 is 741564121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121465147 - 2¹¹ = 121463099 is a prime.

It is not a weakly prime, because it can be changed into another prime (121405147) 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, 60732573 + 60732574.

It is an arithmetic number, because the mean of its divisors is an integer number (60732574).

Almost surely, 2^121465147 is an apocalyptic number.

121465147 is a deficient number, since it is larger than the sum of its proper divisors (1).

121465147 is an equidigital number, since it uses as much as digits as its factorization.

121465147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 121465147 is about 11021.1227649455. The cubic root of 121465147 is about 495.2417239284.

The spelling of 121465147 in words is "one hundred twenty-one million, four hundred sixty-five thousand, one hundred forty-seven".