135263403 has 12 divisors (see below), whose sum is σ = 213142488. Its totient is φ = 81977760.

The previous prime is 135263399. The next prime is 135263461. The reversal of 135263403 is 304362531.

It is a happy number.

It is not a de Polignac number, because 135263403 - 2² = 135263399 is a prime.

It is a super-2 number, since 2×135263403² = 36592376382280818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135263503) 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, 683050 + ... + 683247.

It is an arithmetic number, because the mean of its divisors is an integer number (17761874).

Almost surely, 2^135263403 is an apocalyptic number.

135263403 is a deficient number, since it is larger than the sum of its proper divisors (77879085).

135263403 is a wasteful number, since it uses less digits than its factorization.

135263403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366314 (or 1366311 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 135263403 is about 11630.2795753155. The cubic root of 135263403 is about 513.3262063533.

The spelling of 135263403 in words is "one hundred thirty-five million, two hundred sixty-three thousand, four hundred three".