135425191 has 8 divisors (see below), whose sum is σ = 147821184. Its totient is φ = 123043320.

The previous prime is 135425161. The next prime is 135425203. The reversal of 135425191 is 191524531.

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 135425191 - 2¹³ = 135416999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135425131) 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, 33126 + ... + 36988.

It is an arithmetic number, because the mean of its divisors is an integer number (18477648).

Almost surely, 2^135425191 is an apocalyptic number.

135425191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135425191 is a deficient number, since it is larger than the sum of its proper divisors (12395993).

135425191 is a wasteful number, since it uses less digits than its factorization.

135425191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7061.

The product of its digits is 5400, while the sum is 31.

The square root of 135425191 is about 11637.2329614905. The cubic root of 135425191 is about 513.5307872636.

The spelling of 135425191 in words is "one hundred thirty-five million, four hundred twenty-five thousand, one hundred ninety-one".