121414945 has 8 divisors (see below), whose sum is σ = 149635944. Its totient is φ = 94506624.

The previous prime is 121414913. The next prime is 121414961. The reversal of 121414945 is 549414121.

121414945 = 7791² + 7792².

It can be written as a sum of positive squares in 4 ways, for example, as 23464336 + 97950609 = 4844^2 + 9897^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121414945 - 2⁵ = 121414913 is a prime.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327964 + ... + 328333.

It is an arithmetic number, because the mean of its divisors is an integer number (18704493).

Almost surely, 2^121414945 is an apocalyptic number.

121414945 is the 7792-nd centered square number.

It is an amenable number.

121414945 is a deficient number, since it is larger than the sum of its proper divisors (28220999).

121414945 is an equidigital number, since it uses as much as digits as its factorization.

121414945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656339.

The product of its digits is 5760, while the sum is 31.

The square root of 121414945 is about 11018.8449939184. The cubic root of 121414945 is about 495.1734861070.

The spelling of 121414945 in words is "one hundred twenty-one million, four hundred fourteen thousand, nine hundred forty-five".