143027447641 has 32 divisors (see below), whose sum is σ = 168350101920. Its totient is φ = 120285720576.

The previous prime is 143027447639. The next prime is 143027447669. The reversal of 143027447641 is 146744720341.

143027447641 = 267420² + 267421².

It can be written as a sum of positive squares in 16 ways, for example, as 17743305616 + 125284142025 = 133204^2 + 353955^2 .

It is a 4-Lehmer number, since φ(143027447641) divides (143027447641-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 143027447641 - 2¹ = 143027447639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143027447621) 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, 1566475 + ... + 1655263.

It is an arithmetic number, because the mean of its divisors is an integer number (5260940685).

Almost surely, 2^143027447641 is an apocalyptic number.

143027447641 is the 267421-st centered square number.

It is an amenable number.

143027447641 is a deficient number, since it is larger than the sum of its proper divisors (25322654279).

143027447641 is a wasteful number, since it uses less digits than its factorization.

143027447641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89053.

The product of its (nonzero) digits is 451584, while the sum is 43.

The spelling of 143027447641 in words is "one hundred forty-three billion, twenty-seven million, four hundred forty-seven thousand, six hundred forty-one".