1143502445 has 8 divisors (see below), whose sum is σ = 1386349944. Its totient is φ = 905370624.

The previous prime is 1143502429. The next prime is 1143502447. The reversal of 1143502445 is 5442053411.

It can be written as a sum of positive squares in 4 ways, for example, as 265624804 + 877877641 = 16298^2 + 29629^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1143502445 - 2⁴ = 1143502429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143502447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1178384 + ... + 1179353.

It is an arithmetic number, because the mean of its divisors is an integer number (173293743).

Almost surely, 2^1143502445 is an apocalyptic number.

It is an amenable number.

1143502445 is a deficient number, since it is larger than the sum of its proper divisors (242847499).

1143502445 is an equidigital number, since it uses as much as digits as its factorization.

1143502445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357839.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 1143502445 is about 33815.7129896739. The cubic root of 1143502445 is about 1045.7126599425.

Adding to 1143502445 its reverse (5442053411), we get a palindrome (6585555856).

The spelling of 1143502445 in words is "one billion, one hundred forty-three million, five hundred two thousand, four hundred forty-five".