135895990 has 8 divisors (see below), whose sum is σ = 244612800. Its totient is φ = 54358392.

The previous prime is 135895987. The next prime is 135895993. The reversal of 135895990 is 99598531.

It is a happy number.

135895990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (135895987) and next prime (135895993).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135895993) 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, 6794790 + ... + 6794809.

It is an arithmetic number, because the mean of its divisors is an integer number (30576600).

Almost surely, 2^135895990 is an apocalyptic number.

135895990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135895990 is a deficient number, since it is larger than the sum of its proper divisors (108716810).

135895990 is a wasteful number, since it uses less digits than its factorization.

135895990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13589606.

The product of its (nonzero) digits is 437400, while the sum is 49.

The square root of 135895990 is about 11657.4435447915. The cubic root of 135895990 is about 514.1251871490.

The spelling of 135895990 in words is "one hundred thirty-five million, eight hundred ninety-five thousand, nine hundred ninety".