135412646 has 16 divisors (see below), whose sum is σ = 205610400. Its totient is φ = 66880128.

The previous prime is 135412643. The next prime is 135412649. The reversal of 135412646 is 646214531.

It is an interprime number because it is at equal distance from previous prime (135412643) and next prime (135412649).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135412643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80300 + ... + 81968.

It is an arithmetic number, because the mean of its divisors is an integer number (12850650).

Almost surely, 2^135412646 is an apocalyptic number.

135412646 is a deficient number, since it is larger than the sum of its proper divisors (70197754).

135412646 is a wasteful number, since it uses less digits than its factorization.

135412646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143.

The product of its digits is 17280, while the sum is 32.

The square root of 135412646 is about 11636.6939463062. The cubic root of 135412646 is about 513.5149299414.

The spelling of 135412646 in words is "one hundred thirty-five million, four hundred twelve thousand, six hundred forty-six".