135041191 has 8 divisors (see below), whose sum is σ = 137912544. Its totient is φ = 132181920.

The previous prime is 135041173. The next prime is 135041237. The reversal of 135041191 is 191140531.

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 135041191 - 2²¹ = 132944039 is a prime.

It is a super-2 number, since 2×135041191² = 36472246533396962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135041131) 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, 21670 + ... + 27196.

It is an arithmetic number, because the mean of its divisors is an integer number (17239068).

Almost surely, 2^135041191 is an apocalyptic number.

135041191 is a deficient number, since it is larger than the sum of its proper divisors (2871353).

135041191 is an equidigital number, since it uses as much as digits as its factorization.

135041191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6041.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 135041191 is about 11620.7224818425. The cubic root of 135041191 is about 513.0449532302.

The spelling of 135041191 in words is "one hundred thirty-five million, forty-one thousand, one hundred ninety-one".