133347765 has 8 divisors (see below), whose sum is σ = 213356448. Its totient is φ = 71118800.

The previous prime is 133347763. The next prime is 133347803. The reversal of 133347765 is 567743331.

It is a happy number.

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

It is not a de Polignac number, because 133347765 - 2¹ = 133347763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133347761) 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, 4444911 + ... + 4444940.

It is an arithmetic number, because the mean of its divisors is an integer number (26669556).

Almost surely, 2^133347765 is an apocalyptic number.

133347765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133347765 is a deficient number, since it is larger than the sum of its proper divisors (80008683).

133347765 is an equidigital number, since it uses as much as digits as its factorization.

133347765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8889859.

The product of its digits is 158760, while the sum is 39.

The square root of 133347765 is about 11547.6302763814. The cubic root of 133347765 is about 510.8913861346.

The spelling of 133347765 in words is "one hundred thirty-three million, three hundred forty-seven thousand, seven hundred sixty-five".