143187641 has 2 divisors, whose sum is σ = 143187642. Its totient is φ = 143187640.

The previous prime is 143187571. The next prime is 143187689. The reversal of 143187641 is 146781341.

It is a happy number.

143187641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114404416 + 28783225 = 10696^2 + 5365^2 .

It is a cyclic number.

It is not a de Polignac number, because 143187641 - 2²⁶ = 76078777 is a prime.

It is not a weakly prime, because it can be changed into another prime (143187841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71593820 + 71593821.

It is an arithmetic number, because the mean of its divisors is an integer number (71593821).

Almost surely, 2^143187641 is an apocalyptic number.

It is an amenable number.

143187641 is a deficient number, since it is larger than the sum of its proper divisors (1).

143187641 is an equidigital number, since it uses as much as digits as its factorization.

143187641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The square root of 143187641 is about 11966.1038354178. The cubic root of 143187641 is about 523.1607793411.

The spelling of 143187641 in words is "one hundred forty-three million, one hundred eighty-seven thousand, six hundred forty-one".