133242765 has 8 divisors (see below), whose sum is σ = 213188448. Its totient is φ = 71062800.

The previous prime is 133242737. The next prime is 133242773. The reversal of 133242765 is 567242331.

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

It is not a de Polignac number, because 133242765 - 2¹² = 133238669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4441411 + ... + 4441440.

It is an arithmetic number, because the mean of its divisors is an integer number (26648556).

Almost surely, 2^133242765 is an apocalyptic number.

133242765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133242765 is a deficient number, since it is larger than the sum of its proper divisors (79945683).

133242765 is an equidigital number, since it uses as much as digits as its factorization.

133242765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8882859.

The product of its digits is 30240, while the sum is 33.

The square root of 133242765 is about 11543.0829937240. The cubic root of 133242765 is about 510.7572564484.

The spelling of 133242765 in words is "one hundred thirty-three million, two hundred forty-two thousand, seven hundred sixty-five".