1143401445 has 48 divisors (see below), whose sum is σ = 2007742464. Its totient is φ = 601920000.

The previous prime is 1143401429. The next prime is 1143401449. The reversal of 1143401445 is 5441043411.

It is not a de Polignac number, because 1143401445 - 2⁴ = 1143401429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143401449) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1297405 + ... + 1298285.

It is an arithmetic number, because the mean of its divisors is an integer number (41827968).

Almost surely, 2^1143401445 is an apocalyptic number.

1143401445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1143401445 is a deficient number, since it is larger than the sum of its proper divisors (864341019).

1143401445 is a wasteful number, since it uses less digits than its factorization.

1143401445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1143401445 is about 33814.2195681048. The cubic root of 1143401445 is about 1045.6818714678.

Adding to 1143401445 its reverse (5441043411), we get a palindrome (6584444856).

The spelling of 1143401445 in words is "one billion, one hundred forty-three million, four hundred one thousand, four hundred forty-five".