135479249 has 2 divisors, whose sum is σ = 135479250. Its totient is φ = 135479248.

The previous prime is 135479219. The next prime is 135479257. The reversal of 135479249 is 942974531.

135479249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134397649 + 1081600 = 11593^2 + 1040^2 .

It is an emirp because it is prime and its reverse (942974531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135479249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135479219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67739624 + 67739625.

It is an arithmetic number, because the mean of its divisors is an integer number (67739625).

Almost surely, 2^135479249 is an apocalyptic number.

It is an amenable number.

135479249 is a deficient number, since it is larger than the sum of its proper divisors (1).

135479249 is an equidigital number, since it uses as much as digits as its factorization.

135479249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 44.

The square root of 135479249 is about 11639.5553609234. Note that the first 3 decimals coincide. The cubic root of 135479249 is about 513.5991072814.

The spelling of 135479249 in words is "one hundred thirty-five million, four hundred seventy-nine thousand, two hundred forty-nine".