1143490 has 16 divisors (see below), whose sum is σ = 2109240. Its totient is φ = 446080.

The previous prime is 1143487. The next prime is 1143529. The reversal of 1143490 is 943411.

It can be written as a sum of positive squares in 4 ways, for example, as 690561 + 452929 = 831^2 + 673^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985 + ... + 1804.

2^1143490 is an apocalyptic number.

1143490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1143490 is a deficient number, since it is larger than the sum of its proper divisors (965750).

1143490 is a wasteful number, since it uses less digits than its factorization.

1143490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1143490 is about 1069.3409185101. The cubic root of 1143490 is about 104.5708866352.

The spelling of 1143490 in words is "one million, one hundred forty-three thousand, four hundred ninety".