135243501 has 16 divisors (see below), whose sum is σ = 196363200. Its totient is φ = 82470528.

The previous prime is 135243469. The next prime is 135243503. The reversal of 135243501 is 105342531.

It is not a de Polignac number, because 135243501 - 2⁵ = 135243469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135243503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39256 + ... + 42561.

It is an arithmetic number, because the mean of its divisors is an integer number (12272700).

Almost surely, 2^135243501 is an apocalyptic number.

It is an amenable number.

135243501 is a deficient number, since it is larger than the sum of its proper divisors (61119699).

135243501 is a wasteful number, since it uses less digits than its factorization.

135243501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81868.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 135243501 is about 11629.4239324224. The cubic root of 135243501 is about 513.3010290104.

The spelling of 135243501 in words is "one hundred thirty-five million, two hundred forty-three thousand, five hundred one".