135243774 has 12 divisors (see below), whose sum is σ = 293028216. Its totient is φ = 45081252.

The previous prime is 135243763. The next prime is 135243799. The reversal of 135243774 is 477342531.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3756754 + ... + 3756789.

It is an arithmetic number, because the mean of its divisors is an integer number (24419018).

Almost surely, 2^135243774 is an apocalyptic number.

135243774 is an abundant number, since it is smaller than the sum of its proper divisors (157784442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135243774 is a wasteful number, since it uses less digits than its factorization.

135243774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7513551 (or 7513548 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 135243774 is about 11629.4356698853. The cubic root of 135243774 is about 513.3013743901.

The spelling of 135243774 in words is "one hundred thirty-five million, two hundred forty-three thousand, seven hundred seventy-four".