133743937 has 8 divisors (see below), whose sum is σ = 137674152. Its totient is φ = 129830400.

The previous prime is 133743931. The next prime is 133743941. The reversal of 133743937 is 739347331.

It can be written as a sum of positive squares in 4 ways, for example, as 25563136 + 108180801 = 5056^2 + 10401^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133743937 - 2¹¹ = 133741889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133743937.

It is not an unprimeable number, because it can be changed into a prime (133743931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13137 + ... + 20977.

It is an arithmetic number, because the mean of its divisors is an integer number (17209269).

Almost surely, 2^133743937 is an apocalyptic number.

It is an amenable number.

133743937 is a deficient number, since it is larger than the sum of its proper divisors (3930215).

133743937 is an equidigital number, since it uses as much as digits as its factorization.

133743937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8339.

The product of its digits is 142884, while the sum is 40.

The square root of 133743937 is about 11564.7713769015. The cubic root of 133743937 is about 511.3968333018.

The spelling of 133743937 in words is "one hundred thirty-three million, seven hundred forty-three thousand, nine hundred thirty-seven".