135015646 has 4 divisors (see below), whose sum is σ = 202523472. Its totient is φ = 67507822.

The previous prime is 135015613. The next prime is 135015697. The reversal of 135015646 is 646510531.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33753910 + ... + 33753913.

It is an arithmetic number, because the mean of its divisors is an integer number (50630868).

Almost surely, 2^135015646 is an apocalyptic number.

135015646 is a deficient number, since it is larger than the sum of its proper divisors (67507826).

135015646 is an equidigital number, since it uses as much as digits as its factorization.

135015646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67507825.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 135015646 is about 11619.6233157534. The cubic root of 135015646 is about 513.0126012253.

The spelling of 135015646 in words is "one hundred thirty-five million, fifteen thousand, six hundred forty-six".