1143532534 has 4 divisors (see below), whose sum is σ = 1715298804. Its totient is φ = 571766266.

The previous prime is 1143532501. The next prime is 1143532547. The reversal of 1143532534 is 4352353411.

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

It is a super-2 number, since 2×1143532534² = 2615333312632922312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1143532496 and 1143532505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285883132 + ... + 285883135.

It is an arithmetic number, because the mean of its divisors is an integer number (428824701).

Almost surely, 2^1143532534 is an apocalyptic number.

1143532534 is a deficient number, since it is larger than the sum of its proper divisors (571766270).

1143532534 is an equidigital number, since it uses as much as digits as its factorization.

1143532534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571766269.

The product of its digits is 21600, while the sum is 31.

The square root of 1143532534 is about 33816.1578834734. The cubic root of 1143532534 is about 1045.7218318139.

Adding to 1143532534 its reverse (4352353411), we get a palindrome (5495885945).

The spelling of 1143532534 in words is "one billion, one hundred forty-three million, five hundred thirty-two thousand, five hundred thirty-four".