135423400153523 has 32 divisors (see below), whose sum is σ = 141258655641600. Its totient is φ = 129670469913600.

The previous prime is 135423400153501. The next prime is 135423400153577. The reversal of 135423400153523 is 325351004324531.

It is a cyclic number.

It is not a de Polignac number, because 135423400153523 - 2⁴² = 131025353642419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135423400158523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3553188515 + ... + 3553226627.

It is an arithmetic number, because the mean of its divisors is an integer number (4414332988800).

Almost surely, 2^{135423400153523} is an apocalyptic number.

135423400153523 is a deficient number, since it is larger than the sum of its proper divisors (5835255488077).

135423400153523 is a wasteful number, since it uses less digits than its factorization.

135423400153523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40283.

The product of its (nonzero) digits is 648000, while the sum is 41.

The spelling of 135423400153523 in words is "one hundred thirty-five trillion, four hundred twenty-three billion, four hundred million, one hundred fifty-three thousand, five hundred twenty-three".