135377261 has 8 divisors (see below), whose sum is σ = 142651200. Its totient is φ = 128118240.

The previous prime is 135377257. The next prime is 135377267. The reversal of 135377261 is 162773531.

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 135377261 - 2² = 135377257 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 (135377267) 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, 18296 + ... + 24606.

It is an arithmetic number, because the mean of its divisors is an integer number (17831400).

Almost surely, 2^135377261 is an apocalyptic number.

It is an amenable number.

135377261 is a deficient number, since it is larger than the sum of its proper divisors (7273939).

135377261 is a wasteful number, since it uses less digits than its factorization.

135377261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7459.

The product of its digits is 26460, while the sum is 35.

The square root of 135377261 is about 11635.1734409075. The cubic root of 135377261 is about 513.4701967762.

The spelling of 135377261 in words is "one hundred thirty-five million, three hundred seventy-seven thousand, two hundred sixty-one".