121894463 has 2 divisors, whose sum is σ = 121894464. Its totient is φ = 121894462.

The previous prime is 121894459. The next prime is 121894477. The reversal of 121894463 is 364498121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121894463 - 2² = 121894459 is a prime.

It is a super-2 number, since 2×121894463² = 29716520220116738, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121893463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60947231 + 60947232.

It is an arithmetic number, because the mean of its divisors is an integer number (60947232).

Almost surely, 2^121894463 is an apocalyptic number.

121894463 is a deficient number, since it is larger than the sum of its proper divisors (1).

121894463 is an equidigital number, since it uses as much as digits as its factorization.

121894463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 121894463 is about 11040.5825480361. The cubic root of 121894463 is about 495.8245116588.

The spelling of 121894463 in words is "one hundred twenty-one million, eight hundred ninety-four thousand, four hundred sixty-three".