135540742 has 8 divisors (see below), whose sum is σ = 209869632. Its totient is φ = 65584200.

The previous prime is 135540739. The next prime is 135540767. The reversal of 135540742 is 247045531.

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

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093009 + ... + 1093132.

It is an arithmetic number, because the mean of its divisors is an integer number (26233704).

Almost surely, 2^135540742 is an apocalyptic number.

135540742 is a deficient number, since it is larger than the sum of its proper divisors (74328890).

135540742 is a wasteful number, since it uses less digits than its factorization.

135540742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186174.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 135540742 is about 11642.1966140415. The cubic root of 135540742 is about 513.6768017695.

The spelling of 135540742 in words is "one hundred thirty-five million, five hundred forty thousand, seven hundred forty-two".