143674561 has 8 divisors (see below), whose sum is σ = 151452800. Its totient is φ = 135918000.

The previous prime is 143674543. The next prime is 143674627. The reversal of 143674561 is 165476341.

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 143674561 - 2²⁷ = 9456833 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 143674561.

It is not an unprimeable number, because it can be changed into a prime (143674501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9235 + ... + 19303.

It is an arithmetic number, because the mean of its divisors is an integer number (18931600).

Almost surely, 2^143674561 is an apocalyptic number.

It is an amenable number.

143674561 is a deficient number, since it is larger than the sum of its proper divisors (7778239).

143674561 is a wasteful number, since it uses less digits than its factorization.

143674561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10839.

The product of its digits is 60480, while the sum is 37.

The square root of 143674561 is about 11986.4323716442. The cubic root of 143674561 is about 523.7531238528.

The spelling of 143674561 in words is "one hundred forty-three million, six hundred seventy-four thousand, five hundred sixty-one".