135305025223 has 8 divisors (see below), whose sum is σ = 147020741120. Its totient is φ = 124048749240.

The previous prime is 135305025221. The next prime is 135305025239. The reversal of 135305025223 is 322520503531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135305025223 - 2¹ = 135305025221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135305025221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114859365 + ... + 114860542.

It is an arithmetic number, because the mean of its divisors is an integer number (18377592640).

Almost surely, 2^135305025223 is an apocalyptic number.

135305025223 is a deficient number, since it is larger than the sum of its proper divisors (11715715897).

135305025223 is a wasteful number, since it uses less digits than its factorization.

135305025223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229719957.

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 135305025223 its reverse (322520503531), we get a palindrome (457825528754).

The spelling of 135305025223 in words is "one hundred thirty-five billion, three hundred five million, twenty-five thousand, two hundred twenty-three".