1111145450 has 12 divisors (see below), whose sum is σ = 2066730630. Its totient is φ = 444458160.

The previous prime is 1111145443. The next prime is 1111145489. The reversal of 1111145450 is 545411111.

It can be written as a sum of positive squares in 3 ways, for example, as 1074069529 + 37075921 = 32773^2 + 6089^2 .

It is a super-2 number, since 2×1111145450² = 2469288422111405000, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 11111405 + ... + 11111504.

Almost surely, 2^1111145450 is an apocalyptic number.

1111145450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111145450 is a deficient number, since it is larger than the sum of its proper divisors (955585180).

1111145450 is a wasteful number, since it uses less digits than its factorization.

1111145450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22222921 (or 22222916 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 1111145450 is about 33333.8484126871. The cubic root of 1111145450 is about 1035.7548384325.

Adding to 1111145450 its reverse (545411111), we get a palindrome (1656556561).

The spelling of 1111145450 in words is "one billion, one hundred eleven million, one hundred forty-five thousand, four hundred fifty".