121456451 has 8 divisors (see below), whose sum is σ = 123368064. Its totient is φ = 119551680.

The previous prime is 121456441. The next prime is 121456463. The reversal of 121456451 is 154654121.

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 121456451 - 2²² = 117262147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121456421) 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, 42941 + ... + 45681.

It is an arithmetic number, because the mean of its divisors is an integer number (15421008).

Almost surely, 2^121456451 is an apocalyptic number.

121456451 is a deficient number, since it is larger than the sum of its proper divisors (1911613).

121456451 is an equidigital number, since it uses as much as digits as its factorization.

121456451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3421.

The product of its digits is 4800, while the sum is 29.

The square root of 121456451 is about 11020.7282427252. The cubic root of 121456451 is about 495.2299051065.

The spelling of 121456451 in words is "one hundred twenty-one million, four hundred fifty-six thousand, four hundred fifty-one".