1143887601 has 16 divisors (see below), whose sum is σ = 1536411968. Its totient is φ = 756993600.

The previous prime is 1143887581. The next prime is 1143887611. The reversal of 1143887601 is 1067883411.

It is not a de Polignac number, because 1143887601 - 2⁹ = 1143887089 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 1143887601.

It is not an unprimeable number, because it can be changed into a prime (1143887611) 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, 357330 + ... + 360516.

It is an arithmetic number, because the mean of its divisors is an integer number (96025748).

Almost surely, 2^1143887601 is an apocalyptic number.

It is an amenable number.

1143887601 is a deficient number, since it is larger than the sum of its proper divisors (392524367).

1143887601 is a wasteful number, since it uses less digits than its factorization.

1143887601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4032.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 1143887601 is about 33821.4074367109. The cubic root of 1143887601 is about 1045.8300528686.

The spelling of 1143887601 in words is "one billion, one hundred forty-three million, eight hundred eighty-seven thousand, six hundred one".