1143554 has 4 divisors (see below), whose sum is σ = 1715334. Its totient is φ = 571776.

The previous prime is 1143551. The next prime is 1143563. The reversal of 1143554 is 4553411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1092025 + 51529 = 1045^2 + 227^2 .

It is not an unprimeable number, because it can be changed into a prime (1143551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285887 + ... + 285890.

2^1143554 is an apocalyptic number.

1143554 is a deficient number, since it is larger than the sum of its proper divisors (571780).

1143554 is an equidigital number, since it uses as much as digits as its factorization.

1143554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571779.

The product of its digits is 1200, while the sum is 23.

The square root of 1143554 is about 1069.3708430661. The cubic root of 1143554 is about 104.5728375083.

Adding to 1143554 its reverse (4553411), we get a palindrome (5696965).

The spelling of 1143554 in words is "one million, one hundred forty-three thousand, five hundred fifty-four".