133631148 has 48 divisors (see below), whose sum is σ = 357077504. Its totient is φ = 38102400.

The previous prime is 133631131. The next prime is 133631167. The reversal of 133631148 is 841136331.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49161 + ... + 51807.

Almost surely, 2^133631148 is an apocalyptic number.

It is an amenable number.

133631148 is an abundant number, since it is smaller than the sum of its proper divisors (223446356).

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

133631148 is a wasteful number, since it uses less digits than its factorization.

133631148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3262 (or 3260 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 133631148 is about 11559.8939441502. The cubic root of 133631148 is about 511.2530357322.

Adding to 133631148 its reverse (841136331), we get a palindrome (974767479).

The spelling of 133631148 in words is "one hundred thirty-three million, six hundred thirty-one thousand, one hundred forty-eight".