133787701 has 8 divisors (see below), whose sum is σ = 140671800. Its totient is φ = 127055040.

The previous prime is 133787699. The next prime is 133787713. The reversal of 133787701 is 107787331.

It can be written as a sum of positive squares in 4 ways, for example, as 29441476 + 104346225 = 5426^2 + 10215^2 .

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 133787701 - 2¹ = 133787699 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133787791) 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, 36046 + ... + 39583.

It is an arithmetic number, because the mean of its divisors is an integer number (17583975).

Almost surely, 2^133787701 is an apocalyptic number.

It is an amenable number.

133787701 is a deficient number, since it is larger than the sum of its proper divisors (6884099).

133787701 is an equidigital number, since it uses as much as digits as its factorization.

133787701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75719.

The product of its (nonzero) digits is 24696, while the sum is 37.

The square root of 133787701 is about 11566.6633477421. The cubic root of 133787701 is about 511.4526073697.

The spelling of 133787701 in words is "one hundred thirty-three million, seven hundred eighty-seven thousand, seven hundred one".