135197772 has 24 divisors (see below), whose sum is σ = 329177856. Its totient is φ = 43106448.

The previous prime is 135197761. The next prime is 135197779. The reversal of 135197772 is 277791531.

It is not an unprimeable number, because it can be changed into a prime (135197779) 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, 244648 + ... + 245199.

It is an arithmetic number, because the mean of its divisors is an integer number (13715744).

Almost surely, 2^135197772 is an apocalyptic number.

135197772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135197772 is an abundant number, since it is smaller than the sum of its proper divisors (193980084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135197772 is a wasteful number, since it uses less digits than its factorization.

135197772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489877 (or 489875 counting only the distinct ones).

The product of its digits is 92610, while the sum is 42.

The square root of 135197772 is about 11627.4576756916. The cubic root of 135197772 is about 513.2431694493.

The spelling of 135197772 in words is "one hundred thirty-five million, one hundred ninety-seven thousand, seven hundred seventy-two".