135220230177 has 8 divisors (see below), whose sum is σ = 180303334464. Its totient is φ = 90141973008.

The previous prime is 135220230137. The next prime is 135220230191. The reversal of 135220230177 is 771032022531.

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

It is not a de Polignac number, because 135220230177 - 2¹⁰ = 135220229153 is a prime.

It is a super-2 number, since 2×135220230177² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135220230137) 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, 1146178 + ... + 1258635.

It is an arithmetic number, because the mean of its divisors is an integer number (22537916808).

Almost surely, 2^135220230177 is an apocalyptic number.

It is an amenable number.

135220230177 is a deficient number, since it is larger than the sum of its proper divisors (45083104287).

135220230177 is a wasteful number, since it uses less digits than its factorization.

135220230177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423559.

The product of its (nonzero) digits is 17640, while the sum is 33.

The spelling of 135220230177 in words is "one hundred thirty-five billion, two hundred twenty million, two hundred thirty thousand, one hundred seventy-seven".