121046451 has 4 divisors (see below), whose sum is σ = 161395272. Its totient is φ = 80697632.

The previous prime is 121046437. The next prime is 121046461. The reversal of 121046451 is 154640121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121046451 - 2⁷ = 121046323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121046461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20174406 + ... + 20174411.

It is an arithmetic number, because the mean of its divisors is an integer number (40348818).

Almost surely, 2^121046451 is an apocalyptic number.

121046451 is a deficient number, since it is larger than the sum of its proper divisors (40348821).

121046451 is an equidigital number, since it uses as much as digits as its factorization.

121046451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40348820.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 121046451 is about 11002.1112064912. Note that the first 3 decimals coincide. The cubic root of 121046451 is about 494.6720284335.

Adding to 121046451 its reverse (154640121), we get a palindrome (275686572).

The spelling of 121046451 in words is "one hundred twenty-one million, forty-six thousand, four hundred fifty-one".