135972267 has 4 divisors (see below), whose sum is σ = 181296360. Its totient is φ = 90648176.

The previous prime is 135972259. The next prime is 135972337. The reversal of 135972267 is 762279531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135972267 - 2³ = 135972259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135972467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22662042 + ... + 22662047.

It is an arithmetic number, because the mean of its divisors is an integer number (45324090).

Almost surely, 2^135972267 is an apocalyptic number.

135972267 is a deficient number, since it is larger than the sum of its proper divisors (45324093).

135972267 is an equidigital number, since it uses as much as digits as its factorization.

135972267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45324092.

The product of its digits is 158760, while the sum is 42.

The square root of 135972267 is about 11660.7146865019. The cubic root of 135972267 is about 514.2213601905.

The spelling of 135972267 in words is "one hundred thirty-five million, nine hundred seventy-two thousand, two hundred sixty-seven".