133838757 has 32 divisors (see below), whose sum is σ = 215788160. Its totient is φ = 81492480.

The previous prime is 133838753. The next prime is 133838759. The reversal of 133838757 is 757838331.

It is not a de Polignac number, because 133838757 - 2² = 133838753 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133838753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32082 + ... + 36012.

It is an arithmetic number, because the mean of its divisors is an integer number (6743380).

Almost surely, 2^133838757 is an apocalyptic number.

It is an amenable number.

133838757 is a deficient number, since it is larger than the sum of its proper divisors (81949403).

133838757 is a wasteful number, since it uses less digits than its factorization.

133838757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4050 (or 4044 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 133838757 is about 11568.8701695542. The cubic root of 133838757 is about 511.5176591972.

The spelling of 133838757 in words is "one hundred thirty-three million, eight hundred thirty-eight thousand, seven hundred fifty-seven".