133001992 has 16 divisors (see below), whose sum is σ = 250452540. Its totient is φ = 66214656.

The previous prime is 133001983. The next prime is 133002029. The reversal of 133001992 is 299100331.

It can be written as a sum of positive squares in 2 ways, for example, as 127554436 + 5447556 = 11294^2 + 2334^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 133001992.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33813 + ... + 37540.

Almost surely, 2^133001992 is an apocalyptic number.

It is an amenable number.

133001992 is a deficient number, since it is larger than the sum of its proper divisors (117450548).

133001992 is a wasteful number, since it uses less digits than its factorization.

133001992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71592 (or 71588 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 133001992 is about 11532.6489585004. The cubic root of 133001992 is about 510.4494205838.

The spelling of 133001992 in words is "one hundred thirty-three million, one thousand, nine hundred ninety-two".