121444487 has 2 divisors, whose sum is σ = 121444488. Its totient is φ = 121444486.

The previous prime is 121444459. The next prime is 121444511. The reversal of 121444487 is 784444121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121444487 - 2⁶ = 121444423 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 (121444417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60722243 + 60722244.

It is an arithmetic number, because the mean of its divisors is an integer number (60722244).

Almost surely, 2^121444487 is an apocalyptic number.

121444487 is a deficient number, since it is larger than the sum of its proper divisors (1).

121444487 is an equidigital number, since it uses as much as digits as its factorization.

121444487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28672, while the sum is 35.

The square root of 121444487 is about 11020.1854340115. The cubic root of 121444487 is about 495.2136437906.

The spelling of 121444487 in words is "one hundred twenty-one million, four hundred forty-four thousand, four hundred eighty-seven".