1144986535 has 32 divisors (see below), whose sum is σ = 1715318784. Its totient is φ = 712800000.

The previous prime is 1144986523. The next prime is 1144986539. The reversal of 1144986535 is 5356894411.

It is not a de Polignac number, because 1144986535 - 2⁵ = 1144986503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144986539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 380035 + ... + 383035.

It is an arithmetic number, because the mean of its divisors is an integer number (53603712).

Almost surely, 2^1144986535 is an apocalyptic number.

1144986535 is a deficient number, since it is larger than the sum of its proper divisors (570332249).

1144986535 is a wasteful number, since it uses less digits than its factorization.

1144986535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4015.

The product of its digits is 518400, while the sum is 46.

The square root of 1144986535 is about 33837.6496671976. The cubic root of 1144986535 is about 1046.1648556804.

The spelling of 1144986535 in words is "one billion, one hundred forty-four million, nine hundred eighty-six thousand, five hundred thirty-five".