135256040 has 16 divisors (see below), whose sum is σ = 304326180. Its totient is φ = 54102400.

The previous prime is 135256039. The next prime is 135256081. The reversal of 135256040 is 40652531.

135256040 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in 2 ways, for example, as 134606404 + 649636 = 11602^2 + 806^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1690661 + ... + 1690740.

Almost surely, 2^135256040 is an apocalyptic number.

135256040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135256040 is an abundant number, since it is smaller than the sum of its proper divisors (169070140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135256040 is a wasteful number, since it uses less digits than its factorization.

135256040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3381412 (or 3381408 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 135256040 is about 11629.9630265964. The cubic root of 135256040 is about 513.3168919604.

The spelling of 135256040 in words is "one hundred thirty-five million, two hundred fifty-six thousand, forty".