141642509 has 2 divisors, whose sum is σ = 141642510. Its totient is φ = 141642508.

The previous prime is 141642499. The next prime is 141642517. The reversal of 141642509 is 905246141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128754409 + 12888100 = 11347^2 + 3590^2 .

It is a cyclic number.

It is not a de Polignac number, because 141642509 - 2⁴ = 141642493 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 (141642569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70821254 + 70821255.

It is an arithmetic number, because the mean of its divisors is an integer number (70821255).

Almost surely, 2^141642509 is an apocalyptic number.

It is an amenable number.

141642509 is a deficient number, since it is larger than the sum of its proper divisors (1).

141642509 is an equidigital number, since it uses as much as digits as its factorization.

141642509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 141642509 is about 11901.3658459859. The cubic root of 141642509 is about 521.2721674329.

The spelling of 141642509 in words is "one hundred forty-one million, six hundred forty-two thousand, five hundred nine".