1143402513 has 16 divisors (see below), whose sum is σ = 1664943552. Its totient is φ = 692216000.

The previous prime is 1143402451. The next prime is 1143402553. The reversal of 1143402513 is 3152043411.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1143402513 - 2⁸ = 1143402257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143402553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12643 + ... + 49463.

It is an arithmetic number, because the mean of its divisors is an integer number (104058972).

Almost surely, 2^1143402513 is an apocalyptic number.

It is an amenable number.

1143402513 is a deficient number, since it is larger than the sum of its proper divisors (521541039).

1143402513 is a wasteful number, since it uses less digits than its factorization.

1143402513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37776.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1143402513 is about 33814.2353602739. The cubic root of 1143402513 is about 1045.6821970425.

Adding to 1143402513 its reverse (3152043411), we get a palindrome (4295445924).

The spelling of 1143402513 in words is "one billion, one hundred forty-three million, four hundred two thousand, five hundred thirteen".