1121445454 has 16 divisors (see below), whose sum is σ = 1756080000. Its totient is φ = 536107000.

The previous prime is 1121445439. The next prime is 1121445463. The reversal of 1121445454 is 4545441211.

It is a super-2 number, since 2×1121445454² = 2515279812594532232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145797 + ... + 153295.

It is an arithmetic number, because the mean of its divisors is an integer number (109755000).

Almost surely, 2^1121445454 is an apocalyptic number.

1121445454 is a deficient number, since it is larger than the sum of its proper divisors (634634546).

1121445454 is a wasteful number, since it uses less digits than its factorization.

1121445454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10775.

The product of its digits is 12800, while the sum is 31.

The square root of 1121445454 is about 33487.9896978006. The cubic root of 1121445454 is about 1038.9453849447.

Adding to 1121445454 its reverse (4545441211), we get a palindrome (5666886665).

The spelling of 1121445454 in words is "one billion, one hundred twenty-one million, four hundred forty-five thousand, four hundred fifty-four".