135468473 has 4 divisors (see below), whose sum is σ = 154821120. Its totient is φ = 116115828.

The previous prime is 135468409. The next prime is 135468479. The reversal of 135468473 is 374864531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135468473 - 2⁶ = 135468409 is a prime.

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 135468473.

It is not an unprimeable number, because it can be changed into a prime (135468479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9676313 + ... + 9676326.

It is an arithmetic number, because the mean of its divisors is an integer number (38705280).

Almost surely, 2^135468473 is an apocalyptic number.

It is an amenable number.

135468473 is a deficient number, since it is larger than the sum of its proper divisors (19352647).

135468473 is an equidigital number, since it uses as much as digits as its factorization.

135468473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19352646.

The product of its digits is 241920, while the sum is 41.

The square root of 135468473 is about 11639.0924474376. The cubic root of 135468473 is about 513.5854897206.

The spelling of 135468473 in words is "one hundred thirty-five million, four hundred sixty-eight thousand, four hundred seventy-three".