133943652 has 24 divisors (see below), whose sum is σ = 347261600. Its totient is φ = 44647848.

The previous prime is 133943639. The next prime is 133943659. The reversal of 133943652 is 256349331.

It is a happy number.

It is a super-2 number, since 2×133943652² = 35881803822194208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (133943659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620002 + ... + 620217.

Almost surely, 2^133943652 is an apocalyptic number.

133943652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133943652 is an abundant number, since it is smaller than the sum of its proper divisors (213317948).

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

133943652 is a wasteful number, since it uses less digits than its factorization.

133943652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240232 (or 1240224 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 133943652 is about 11573.4027839698. The cubic root of 133943652 is about 511.6512568555.

The spelling of 133943652 in words is "one hundred thirty-three million, nine hundred forty-three thousand, six hundred fifty-two".