121465281 has 8 divisors (see below), whose sum is σ = 185089984. Its totient is φ = 69408720.

The previous prime is 121465273. The next prime is 121465291. The reversal of 121465281 is 182564121.

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

It is not a de Polignac number, because 121465281 - 2³ = 121465273 is a prime.

It is a super-2 number, since 2×121465281² = 29507628976817922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121465261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2892010 + ... + 2892051.

It is an arithmetic number, because the mean of its divisors is an integer number (23136248).

Almost surely, 2^121465281 is an apocalyptic number.

It is an amenable number.

121465281 is a deficient number, since it is larger than the sum of its proper divisors (63624703).

121465281 is an equidigital number, since it uses as much as digits as its factorization.

121465281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5784071.

The product of its digits is 3840, while the sum is 30.

The square root of 121465281 is about 11021.1288441793. The cubic root of 121465281 is about 495.2419060447.

The spelling of 121465281 in words is "one hundred twenty-one million, four hundred sixty-five thousand, two hundred eighty-one".