1143031450 has 96 divisors (see below), whose sum is σ = 2470824000. Its totient is φ = 389030400.

The previous prime is 1143031447. The next prime is 1143031489. The reversal of 1143031450 is 541303411.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 929436 + ... + 930664.

It is an arithmetic number, because the mean of its divisors is an integer number (25737750).

Almost surely, 2^1143031450 is an apocalyptic number.

1143031450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1143031450 is an abundant number, since it is smaller than the sum of its proper divisors (1327792550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143031450 is a wasteful number, since it uses less digits than its factorization.

1143031450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360 (or 1355 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1143031450 is about 33808.7481282582. The cubic root of 1143031450 is about 1045.5690680409.

Adding to 1143031450 its reverse (541303411), we get a palindrome (1684334861).

The spelling of 1143031450 in words is "one billion, one hundred forty-three million, thirty-one thousand, four hundred fifty".