133964842 has 16 divisors (see below), whose sum is σ = 220000032. Its totient is φ = 60675120.

The previous prime is 133964821. The next prime is 133964849. The reversal of 133964842 is 248469331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 133964795 and 133964804.

It is not an unprimeable number, because it can be changed into a prime (133964849) 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, 4533 + ... + 16984.

It is an arithmetic number, because the mean of its divisors is an integer number (13750002).

Almost surely, 2^133964842 is an apocalyptic number.

133964842 is a deficient number, since it is larger than the sum of its proper divisors (86035190).

133964842 is a wasteful number, since it uses less digits than its factorization.

133964842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21813.

The product of its digits is 124416, while the sum is 40.

The square root of 133964842 is about 11574.3182088622. The cubic root of 133964842 is about 511.6782366545.

The spelling of 133964842 in words is "one hundred thirty-three million, nine hundred sixty-four thousand, eight hundred forty-two".