135903646 has 4 divisors (see below), whose sum is σ = 203855472. Its totient is φ = 67951822.

The previous prime is 135903641. The next prime is 135903673. The reversal of 135903646 is 646309531.

135903646 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (135903641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33975910 + ... + 33975913.

It is an arithmetic number, because the mean of its divisors is an integer number (50963868).

Almost surely, 2^135903646 is an apocalyptic number.

135903646 is a deficient number, since it is larger than the sum of its proper divisors (67951826).

135903646 is an equidigital number, since it uses as much as digits as its factorization.

135903646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67951825.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 135903646 is about 11657.7719140494. The cubic root of 135903646 is about 514.1348417595.

The spelling of 135903646 in words is "one hundred thirty-five million, nine hundred three thousand, six hundred forty-six".