143042761 has 8 divisors (see below), whose sum is σ = 151125120. Its totient is φ = 135170448.

The previous prime is 143042747. The next prime is 143042791. The reversal of 143042761 is 167240341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143042761 - 2⁵ = 143042729 is a prime.

It is a super-2 number, since 2×143042761² = 40922462949006242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143042741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51111 + ... + 53836.

It is an arithmetic number, because the mean of its divisors is an integer number (18890640).

Almost surely, 2^143042761 is an apocalyptic number.

It is an amenable number.

143042761 is a deficient number, since it is larger than the sum of its proper divisors (8082359).

143042761 is a wasteful number, since it uses less digits than its factorization.

143042761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105023.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 143042761 is about 11960.0485366908. The cubic root of 143042761 is about 522.9842717614.

The spelling of 143042761 in words is "one hundred forty-three million, forty-two thousand, seven hundred sixty-one".