135422493 has 8 divisors (see below), whose sum is σ = 191184768. Its totient is φ = 84970944.

The previous prime is 135422491. The next prime is 135422509. The reversal of 135422493 is 394224531.

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

It is not a de Polignac number, because 135422493 - 2¹ = 135422491 is a prime.

It is a super-2 number, since 2×135422493² = 36678503220670098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135422491) 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, 1327621 + ... + 1327722.

It is an arithmetic number, because the mean of its divisors is an integer number (23898096).

Almost surely, 2^135422493 is an apocalyptic number.

It is an amenable number.

135422493 is a deficient number, since it is larger than the sum of its proper divisors (55762275).

135422493 is a wasteful number, since it uses less digits than its factorization.

135422493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2655363.

The product of its digits is 25920, while the sum is 33.

The square root of 135422493 is about 11637.1170398858. The cubic root of 135422493 is about 513.5273769791.

The spelling of 135422493 in words is "one hundred thirty-five million, four hundred twenty-two thousand, four hundred ninety-three".