135412237 has 2 divisors, whose sum is σ = 135412238. Its totient is φ = 135412236.

The previous prime is 135412219. The next prime is 135412283. The reversal of 135412237 is 732214531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85766121 + 49646116 = 9261^2 + 7046^2 .

It is a cyclic number.

It is not a de Polignac number, because 135412237 - 2¹¹ = 135410189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135412037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67706118 + 67706119.

It is an arithmetic number, because the mean of its divisors is an integer number (67706119).

Almost surely, 2^135412237 is an apocalyptic number.

It is an amenable number.

135412237 is a deficient number, since it is larger than the sum of its proper divisors (1).

135412237 is an equidigital number, since it uses as much as digits as its factorization.

135412237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 28.

The square root of 135412237 is about 11636.6763725731. The cubic root of 135412237 is about 513.5144129345.

Adding to 135412237 its reverse (732214531), we get a palindrome (867626768).

The spelling of 135412237 in words is "one hundred thirty-five million, four hundred twelve thousand, two hundred thirty-seven".