1143655201 has 16 divisors (see below), whose sum is σ = 1300264000. Its totient is φ = 997178688.

The previous prime is 1143655199. The next prime is 1143655213. The reversal of 1143655201 is 1025563411.

It is a cyclic number.

It is not a de Polignac number, because 1143655201 - 2¹ = 1143655199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1143655201.

It is not an unprimeable number, because it can be changed into a prime (1143655231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79570 + ... + 92836.

It is an arithmetic number, because the mean of its divisors is an integer number (81266500).

Almost surely, 2^1143655201 is an apocalyptic number.

It is an amenable number.

1143655201 is a deficient number, since it is larger than the sum of its proper divisors (156608799).

1143655201 is a wasteful number, since it uses less digits than its factorization.

1143655201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13648.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1143655201 is about 33817.9715683836. The cubic root of 1143655201 is about 1045.7592220848.

The spelling of 1143655201 in words is "one billion, one hundred forty-three million, six hundred fifty-five thousand, two hundred one".