143001461 has 2 divisors, whose sum is σ = 143001462. Its totient is φ = 143001460.

The previous prime is 143001431. The next prime is 143001479. The reversal of 143001461 is 164100341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136656100 + 6345361 = 11690^2 + 2519^2 .

It is a cyclic number.

It is not a de Polignac number, because 143001461 - 2²² = 138807157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143001431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71500730 + 71500731.

It is an arithmetic number, because the mean of its divisors is an integer number (71500731).

Almost surely, 2^143001461 is an apocalyptic number.

It is an amenable number.

143001461 is a deficient number, since it is larger than the sum of its proper divisors (1).

143001461 is an equidigital number, since it uses as much as digits as its factorization.

143001461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 143001461 is about 11958.3218304242. The cubic root of 143001461 is about 522.9339340643.

The spelling of 143001461 in words is "one hundred forty-three million, one thousand, four hundred sixty-one".