135243747 has 12 divisors (see below), whose sum is σ = 197287584. Its totient is φ = 89269200.

The previous prime is 135243709. The next prime is 135243751. The reversal of 135243747 is 747342531.

It is not a de Polignac number, because 135243747 - 2⁶ = 135243683 is a prime.

It is a super-2 number, since 2×135243747² = 36581742205200018, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (135243847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73483 + ... + 75300.

It is an arithmetic number, because the mean of its divisors is an integer number (16440632).

Almost surely, 2^135243747 is an apocalyptic number.

135243747 is a deficient number, since it is larger than the sum of its proper divisors (62043837).

135243747 is a wasteful number, since it uses less digits than its factorization.

135243747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148890 (or 148887 counting only the distinct ones).

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

The square root of 135243747 is about 11629.4345090378. The cubic root of 135243747 is about 513.3013402317.

It can be divided in two parts, 13524 and 3747, that added together give a palindrome (17271).

The spelling of 135243747 in words is "one hundred thirty-five million, two hundred forty-three thousand, seven hundred forty-seven".