135901297 has 4 divisors (see below), whose sum is σ = 155315776. Its totient is φ = 116486820.

The previous prime is 135901267. The next prime is 135901301. The reversal of 135901297 is 792109531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 792109531 = 9109 ⋅86959.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135901297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135901217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9707229 + ... + 9707242.

It is an arithmetic number, because the mean of its divisors is an integer number (38828944).

Almost surely, 2^135901297 is an apocalyptic number.

It is an amenable number.

135901297 is a deficient number, since it is larger than the sum of its proper divisors (19414479).

135901297 is an equidigital number, since it uses as much as digits as its factorization.

135901297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19414478.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 135901297 is about 11657.6711653743. The cubic root of 135901297 is about 514.1318795880.

The spelling of 135901297 in words is "one hundred thirty-five million, nine hundred one thousand, two hundred ninety-seven".