143291479 has 2 divisors, whose sum is σ = 143291480. Its totient is φ = 143291478.

The previous prime is 143291461. The next prime is 143291497. The reversal of 143291479 is 974192341.

Together with next prime (143291497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (143291461) and next prime (143291497).

It is a cyclic number.

It is not a de Polignac number, because 143291479 - 2⁹ = 143290967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143291459) 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 as a sum of consecutive naturals, namely, 71645739 + 71645740.

It is an arithmetic number, because the mean of its divisors is an integer number (71645740).

Almost surely, 2^143291479 is an apocalyptic number.

143291479 is a deficient number, since it is larger than the sum of its proper divisors (1).

143291479 is an equidigital number, since it uses as much as digits as its factorization.

143291479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 143291479 is about 11970.4418882512. The cubic root of 143291479 is about 523.2872121399.

The spelling of 143291479 in words is "one hundred forty-three million, two hundred ninety-one thousand, four hundred seventy-nine".