143986745231 has 32 divisors (see below), whose sum is σ = 186515136000. Its totient is φ = 108178578432.

The previous prime is 143986745179. The next prime is 143986745261. The reversal of 143986745231 is 132547689341.

It is a cyclic number.

It is not a de Polignac number, because 143986745231 - 2¹⁰ = 143986744207 is a prime.

It is a super-2 number, since 2×143986745231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143986745261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 406286 + ... + 673083.

It is an arithmetic number, because the mean of its divisors is an integer number (5828598000).

Almost surely, 2^143986745231 is an apocalyptic number.

143986745231 is a deficient number, since it is larger than the sum of its proper divisors (42528390769).

143986745231 is a wasteful number, since it uses less digits than its factorization.

143986745231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079471.

The product of its digits is 4354560, while the sum is 53.

The spelling of 143986745231 in words is "one hundred forty-three billion, nine hundred eighty-six million, seven hundred forty-five thousand, two hundred thirty-one".