239146541 has 2 divisors, whose sum is σ = 239146542. Its totient is φ = 239146540.

The previous prime is 239146511. The next prime is 239146549. The reversal of 239146541 is 145641932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216384100 + 22762441 = 14710^2 + 4771^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239146541 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239146549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119573270 + 119573271.

It is an arithmetic number, because the mean of its divisors is an integer number (119573271).

Almost surely, 2^239146541 is an apocalyptic number.

It is an amenable number.

239146541 is a deficient number, since it is larger than the sum of its proper divisors (1).

239146541 is an equidigital number, since it uses as much as digits as its factorization.

239146541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 239146541 is about 15464.3635821200. The cubic root of 239146541 is about 620.7089886290.

The spelling of 239146541 in words is "two hundred thirty-nine million, one hundred forty-six thousand, five hundred forty-one".