143489071 has 16 divisors (see below), whose sum is σ = 166321440. Its totient is φ = 122532480.

The previous prime is 143489057. The next prime is 143489117. The reversal of 143489071 is 170984341.

143489071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 143489071 - 2⁵ = 143489039 is a prime.

It is a super-2 number, since 2×143489071² = 41178226992886082, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 143489071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143489041) 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, 5725 + ... + 17881.

It is an arithmetic number, because the mean of its divisors is an integer number (10395090).

Almost surely, 2^143489071 is an apocalyptic number.

143489071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

143489071 is a deficient number, since it is larger than the sum of its proper divisors (22832369).

143489071 is a wasteful number, since it uses less digits than its factorization.

143489071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12234.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 143489071 is about 11978.6923743788. The cubic root of 143489071 is about 523.5276308939.

The spelling of 143489071 in words is "one hundred forty-three million, four hundred eighty-nine thousand, seventy-one".