135043247 has 2 divisors, whose sum is σ = 135043248. Its totient is φ = 135043246.

The previous prime is 135043231. The next prime is 135043253. The reversal of 135043247 is 742340531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135043247 - 2⁴ = 135043231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135043277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67521623 + 67521624.

It is an arithmetic number, because the mean of its divisors is an integer number (67521624).

Almost surely, 2^135043247 is an apocalyptic number.

135043247 is a deficient number, since it is larger than the sum of its proper divisors (1).

135043247 is an equidigital number, since it uses as much as digits as its factorization.

135043247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 135043247 is about 11620.8109441639. The cubic root of 135043247 is about 513.0475569174.

Adding to 135043247 its reverse (742340531), we get a palindrome (877383778).

The spelling of 135043247 in words is "one hundred thirty-five million, forty-three thousand, two hundred forty-seven".