135312025523 has 8 divisors (see below), whose sum is σ = 135517324800. Its totient is φ = 135106878528.

The previous prime is 135312025517. The next prime is 135312025529. The reversal of 135312025523 is 325520213531.

It is an interprime number because it is at equal distance from previous prime (135312025517) and next prime (135312025529).

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 135312025523 - 2¹⁰ = 135312024499 is a prime.

It is a super-2 number, since 2×135312025523² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135312025523.

It is not an unprimeable number, because it can be changed into a prime (135312025529) 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, 1807583 + ... + 1880951.

It is an arithmetic number, because the mean of its divisors is an integer number (16939665600).

Almost surely, 2^135312025523 is an apocalyptic number.

135312025523 is a deficient number, since it is larger than the sum of its proper divisors (205299277).

135312025523 is a wasteful number, since it uses less digits than its factorization.

135312025523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76141.

The product of its (nonzero) digits is 27000, while the sum is 32.

The spelling of 135312025523 in words is "one hundred thirty-five billion, three hundred twelve million, twenty-five thousand, five hundred twenty-three".