133231044 has 24 divisors (see below), whose sum is σ = 311240608. Its totient is φ = 44357760.

The previous prime is 133231013. The next prime is 133231073. The reversal of 133231044 is 440132331.

It is a super-2 number, since 2×133231044² = 35501022170659872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133231044.

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, 4764 + ... + 17004.

Almost surely, 2^133231044 is an apocalyptic number.

It is an amenable number.

133231044 is an abundant number, since it is smaller than the sum of its proper divisors (178009564).

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

133231044 is a wasteful number, since it uses less digits than its factorization.

133231044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13155 (or 13153 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 133231044 is about 11542.5752759079. The cubic root of 133231044 is about 510.7422793716.

Adding to 133231044 its reverse (440132331), we get a palindrome (573363375).

The spelling of 133231044 in words is "one hundred thirty-three million, two hundred thirty-one thousand, forty-four".