1143245245 has 32 divisors (see below), whose sum is σ = 1473023232. Its totient is φ = 849818112.

The previous prime is 1143245239. The next prime is 1143245303. The reversal of 1143245245 is 5425423411.

1143245245 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1143245245 - 2²¹ = 1141148093 is a prime.

It is a super-2 number, since 2×1143245245² = 2614019380430220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 651289 + ... + 653041.

It is an arithmetic number, because the mean of its divisors is an integer number (46031976).

Almost surely, 2^1143245245 is an apocalyptic number.

It is an amenable number.

1143245245 is a deficient number, since it is larger than the sum of its proper divisors (329777987).

1143245245 is a wasteful number, since it uses less digits than its factorization.

1143245245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941.

The product of its digits is 19200, while the sum is 31.

The square root of 1143245245 is about 33811.9098100063. The cubic root of 1143245245 is about 1045.6342524542.

Adding to 1143245245 its reverse (5425423411), we get a palindrome (6568668656).

The spelling of 1143245245 in words is "one billion, one hundred forty-three million, two hundred forty-five thousand, two hundred forty-five".