135955751 has 4 divisors (see below), whose sum is σ = 136028952. Its totient is φ = 135882552.

The previous prime is 135955717. The next prime is 135955753. The reversal of 135955751 is 157559531.

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 135955751 - 2¹⁰ = 135954727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135955699 and 135955708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135955753) 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, 33740 + ... + 37553.

It is an arithmetic number, because the mean of its divisors is an integer number (34007238).

Almost surely, 2^135955751 is an apocalyptic number.

135955751 is a deficient number, since it is larger than the sum of its proper divisors (73201).

135955751 is an equidigital number, since it uses as much as digits as its factorization.

135955751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73200.

The product of its digits is 118125, while the sum is 41.

The square root of 135955751 is about 11660.0064751268. The cubic root of 135955751 is about 514.2005392195.

The spelling of 135955751 in words is "one hundred thirty-five million, nine hundred fifty-five thousand, seven hundred fifty-one".