143240487 has 64 divisors (see below), whose sum is σ = 233694720. Its totient is φ = 77082624.

The previous prime is 143240479. The next prime is 143240507. The reversal of 143240487 is 784042341.

It is not a de Polignac number, because 143240487 - 2³ = 143240479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143240417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1045483 + ... + 1045619.

It is an arithmetic number, because the mean of its divisors is an integer number (3651480).

Almost surely, 2^143240487 is an apocalyptic number.

143240487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

143240487 is a deficient number, since it is larger than the sum of its proper divisors (90454233).

143240487 is a wasteful number, since it uses less digits than its factorization.

143240487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 143240487 is about 11968.3117857115. The cubic root of 143240487 is about 523.2251320880.

The spelling of 143240487 in words is "one hundred forty-three million, two hundred forty thousand, four hundred eighty-seven".