133630148 has 6 divisors (see below), whose sum is σ = 233852766. Its totient is φ = 66815072.

The previous prime is 133630139. The next prime is 133630153. The reversal of 133630148 is 841036331.

It can be written as a sum of positive squares in only one way, i.e., 100360324 + 33269824 = 10018^2 + 5768^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 133630148.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16703765 + ... + 16703772.

It is an arithmetic number, because the mean of its divisors is an integer number (38975461).

Almost surely, 2^133630148 is an apocalyptic number.

It is an amenable number.

133630148 is a deficient number, since it is larger than the sum of its proper divisors (100222618).

133630148 is a wasteful number, since it uses less digits than its factorization.

133630148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33407541 (or 33407539 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 133630148 is about 11559.8506910773. The cubic root of 133630148 is about 511.2517604449.

Adding to 133630148 its reverse (841036331), we get a palindrome (974666479).

The spelling of 133630148 in words is "one hundred thirty-three million, six hundred thirty thousand, one hundred forty-eight".