133946736 has 80 divisors (see below), whose sum is σ = 431424768. Its totient is φ = 34790400.

The previous prime is 133946719. The next prime is 133946759. The reversal of 133946736 is 637649331.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14425 + ... + 21816.

Almost surely, 2^133946736 is an apocalyptic number.

133946736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133946736 is an abundant number, since it is smaller than the sum of its proper divisors (297478032).

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

133946736 is a wasteful number, since it uses less digits than its factorization.

133946736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36270 (or 36264 counting only the distinct ones).

The product of its digits is 244944, while the sum is 42.

The square root of 133946736 is about 11573.5360197305. The cubic root of 133946736 is about 511.6551836818.

The spelling of 133946736 in words is "one hundred thirty-three million, nine hundred forty-six thousand, seven hundred thirty-six".