143053561 has 16 divisors (see below), whose sum is σ = 172699648. Its totient is φ = 115894800.

The previous prime is 143053517. The next prime is 143053567. The reversal of 143053561 is 165350341.

143053561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 143053561 - 2¹⁷ = 142922489 is a prime.

It is the 11961-st Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143053567) by changing a digit.

It is a nontrivial repunit in base 11960.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1666 + ... + 16996.

It is an arithmetic number, because the mean of its divisors is an integer number (10793728).

Almost surely, 2^143053561 is an apocalyptic number.

It is an amenable number.

143053561 is a deficient number, since it is larger than the sum of its proper divisors (29646087).

143053561 is a wasteful number, since it uses less digits than its factorization.

143053561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15412.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 143053561 is about 11960.5000313532. The cubic root of 143053561 is about 522.9974335319.

The spelling of 143053561 in words is "one hundred forty-three million, fifty-three thousand, five hundred sixty-one".