1143705470 has 32 divisors (see below), whose sum is σ = 2100669120. Its totient is φ = 448208640.

The previous prime is 1143705469. The next prime is 1143705491. The reversal of 1143705470 is 745073411.

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 15 ways as a sum of consecutive naturals, for example, 156866 + ... + 163994.

It is an arithmetic number, because the mean of its divisors is an integer number (65645910).

Almost surely, 2^1143705470 is an apocalyptic number.

1143705470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1143705470 is a deficient number, since it is larger than the sum of its proper divisors (956963650).

1143705470 is a wasteful number, since it uses less digits than its factorization.

1143705470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7460.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 1143705470 is about 33818.7147892997. The cubic root of 1143705470 is about 1045.7745438648.

Adding to 1143705470 its reverse (745073411), we get a palindrome (1888778881).

The spelling of 1143705470 in words is "one billion, one hundred forty-three million, seven hundred five thousand, four hundred seventy".