121412961 has 6 divisors (see below), whose sum is σ = 175374290. Its totient is φ = 80941968.

The previous prime is 121412939. The next prime is 121412971. The reversal of 121412961 is 169214121.

It can be written as a sum of positive squares in only one way, i.e., 119574225 + 1838736 = 10935^2 + 1356^2 .

It is not a de Polignac number, because 121412961 - 2⁶ = 121412897 is a prime.

It is a super-2 number, since 2×121412961² = 29482214197575042, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121412971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6745156 + ... + 6745173.

Almost surely, 2^121412961 is an apocalyptic number.

It is an amenable number.

121412961 is a deficient number, since it is larger than the sum of its proper divisors (53961329).

121412961 is a wasteful number, since it uses less digits than its factorization.

121412961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13490335 (or 13490332 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 121412961 is about 11018.7549659660. The cubic root of 121412961 is about 495.1707889389.

The spelling of 121412961 in words is "one hundred twenty-one million, four hundred twelve thousand, nine hundred sixty-one".