135226287 has 32 divisors (see below), whose sum is σ = 241011200. Its totient is φ = 73203264.

The previous prime is 135226253. The next prime is 135226303. The reversal of 135226287 is 782622531.

135226287 is a `hidden beast` number, since 1 + 3 + 5 + 22 + 628 + 7 = 666.

It is not a de Polignac number, because 135226287 - 2¹⁴ = 135209903 is a prime.

It is a super-2 number, since 2×135226287² = 36572297391612738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135226207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15238 + ... + 22419.

It is an arithmetic number, because the mean of its divisors is an integer number (7531600).

Almost surely, 2^135226287 is an apocalyptic number.

135226287 is a deficient number, since it is larger than the sum of its proper divisors (105784913).

135226287 is a wasteful number, since it uses less digits than its factorization.

135226287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37692 (or 37686 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 135226287 is about 11628.6838034233. The cubic root of 135226287 is about 513.2792501726.

The spelling of 135226287 in words is "one hundred thirty-five million, two hundred twenty-six thousand, two hundred eighty-seven".