133742856 has 32 divisors (see below), whose sum is σ = 360077760. Its totient is φ = 41151552.

The previous prime is 133742849. The next prime is 133742899. The reversal of 133742856 is 658247331.

133742856 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214020 + ... + 214643.

It is an arithmetic number, because the mean of its divisors is an integer number (11252430).

Almost surely, 2^133742856 is an apocalyptic number.

It is an amenable number.

133742856 is an abundant number, since it is smaller than the sum of its proper divisors (226334904).

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

133742856 is a wasteful number, since it uses less digits than its factorization.

133742856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428685 (or 428681 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 133742856 is about 11564.7246400422. The cubic root of 133742856 is about 511.3954554911.

The spelling of 133742856 in words is "one hundred thirty-three million, seven hundred forty-two thousand, eight hundred fifty-six".