1143431350 has 48 divisors (see below), whose sum is σ = 2194614000. Its totient is φ = 442903680.

The previous prime is 1143431321. The next prime is 1143431351. The reversal of 1143431350 is 531343411.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143431351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 422301 + ... + 424999.

It is an arithmetic number, because the mean of its divisors is an integer number (45721125).

Almost surely, 2^1143431350 is an apocalyptic number.

1143431350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1143431350 is a deficient number, since it is larger than the sum of its proper divisors (1051182650).

1143431350 is a wasteful number, since it uses less digits than its factorization.

1143431350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2977 (or 2972 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1143431350 is about 33814.6617608398. The cubic root of 1143431350 is about 1045.6909877888.

Adding to 1143431350 its reverse (531343411), we get a palindrome (1674774761).

The spelling of 1143431350 in words is "one billion, one hundred forty-three million, four hundred thirty-one thousand, three hundred fifty".