133061828 has 6 divisors (see below), whose sum is σ = 232858206. Its totient is φ = 66530912.

The previous prime is 133061821. The next prime is 133061849. The reversal of 133061828 is 828160331.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 123832384 + 9229444 = 11128^2 + 3038^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133061794 and 133061803.

It is not an unprimeable number, because it can be changed into a prime (133061821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16632725 + ... + 16632732.

It is an arithmetic number, because the mean of its divisors is an integer number (38809701).

Almost surely, 2^133061828 is an apocalyptic number.

It is an amenable number.

133061828 is a deficient number, since it is larger than the sum of its proper divisors (99796378).

133061828 is a wasteful number, since it uses less digits than its factorization.

133061828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33265461 (or 33265459 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 133061828 is about 11535.2428669708. The cubic root of 133061828 is about 510.5259574634.

The spelling of 133061828 in words is "one hundred thirty-three million, sixty-one thousand, eight hundred twenty-eight".