1143758061 has 12 divisors (see below), whose sum is σ = 1655933760. Its totient is φ = 760733640.

The previous prime is 1143758059. The next prime is 1143758071. The reversal of 1143758061 is 1608573411.

1143758061 is a `hidden beast` number, since 1 + 14 + 3 + 7 + 580 + 61 = 666.

It is not a de Polignac number, because 1143758061 - 2¹ = 1143758059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143758071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143551 + ... + 151308.

It is an arithmetic number, because the mean of its divisors is an integer number (137994480).

Almost surely, 2^1143758061 is an apocalyptic number.

It is an amenable number.

1143758061 is a deficient number, since it is larger than the sum of its proper divisors (512175699).

1143758061 is a wasteful number, since it uses less digits than its factorization.

1143758061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295296 (or 295293 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1143758061 is about 33819.4923232150. The cubic root of 1143758061 is about 1045.7905729001.

The spelling of 1143758061 in words is "one billion, one hundred forty-three million, seven hundred fifty-eight thousand, sixty-one".