121453456 has 10 divisors (see below), whose sum is σ = 235316102. Its totient is φ = 60726720.

The previous prime is 121453433. The next prime is 121453459. The reversal of 121453456 is 654354121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 74995600 + 46457856 = 8660^2 + 6816^2 .

It is not an unprimeable number, because it can be changed into a prime (121453459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3795405 + ... + 3795436.

Almost surely, 2^121453456 is an apocalyptic number.

121453456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121453456 is a deficient number, since it is larger than the sum of its proper divisors (113862646).

121453456 is an equidigital number, since it uses as much as digits as its factorization.

121453456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7590849 (or 7590843 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 121453456 is about 11020.5923615748. The cubic root of 121453456 is about 495.2258344410.

The spelling of 121453456 in words is "one hundred twenty-one million, four hundred fifty-three thousand, four hundred fifty-six".