135627309 has 12 divisors (see below), whose sum is σ = 207430236. Its totient is φ = 85099392.

The previous prime is 135627293. The next prime is 135627337. The reversal of 135627309 is 903726531.

It can be written as a sum of positive squares in 2 ways, for example, as 56025225 + 79602084 = 7485^2 + 8922^2 .

It is not a de Polignac number, because 135627309 - 2⁴ = 135627293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135627109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 443074 + ... + 443379.

It is an arithmetic number, because the mean of its divisors is an integer number (17285853).

Almost surely, 2^135627309 is an apocalyptic number.

It is an amenable number.

135627309 is a deficient number, since it is larger than the sum of its proper divisors (71802927).

135627309 is a wasteful number, since it uses less digits than its factorization.

135627309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886476 (or 886473 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 135627309 is about 11645.9138327570. The cubic root of 135627309 is about 513.7861366593.

The spelling of 135627309 in words is "one hundred thirty-five million, six hundred twenty-seven thousand, three hundred nine".