135331499 has 4 divisors (see below), whose sum is σ = 136113936. Its totient is φ = 134549064.

The previous prime is 135331453. The next prime is 135331501. The reversal of 135331499 is 994133531.

135331499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135331499 - 2²⁰ = 134282923 is a prime.

It is a super-2 number, since 2×135331499² = 36629229243174002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135331099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390959 + ... + 391304.

It is an arithmetic number, because the mean of its divisors is an integer number (34028484).

Almost surely, 2^135331499 is an apocalyptic number.

135331499 is a deficient number, since it is larger than the sum of its proper divisors (782437).

135331499 is an equidigital number, since it uses as much as digits as its factorization.

135331499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782436.

The product of its digits is 43740, while the sum is 38.

The square root of 135331499 is about 11633.2067376111. The cubic root of 135331499 is about 513.4123336090.

The spelling of 135331499 in words is "one hundred thirty-five million, three hundred thirty-one thousand, four hundred ninety-nine".