135115257023 has 8 divisors (see below), whose sum is σ = 142230178800. Its totient is φ = 128000694528.

The previous prime is 135115256999. The next prime is 135115257037. The reversal of 135115257023 is 320752511531.

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 135115257023 - 2¹⁰ = 135115255999 is a prime.

It is a super-2 number, since 2×135115257023² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135115257923) 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, 1058993 + ... + 1179701.

It is an arithmetic number, because the mean of its divisors is an integer number (17778772350).

Almost surely, 2^135115257023 is an apocalyptic number.

135115257023 is a deficient number, since it is larger than the sum of its proper divisors (7114921777).

135115257023 is a wasteful number, since it uses less digits than its factorization.

135115257023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179641.

The product of its (nonzero) digits is 31500, while the sum is 35.

Adding to 135115257023 its reverse (320752511531), we get a palindrome (455867768554).

The spelling of 135115257023 in words is "one hundred thirty-five billion, one hundred fifteen million, two hundred fifty-seven thousand, twenty-three".