133097665 has 16 divisors (see below), whose sum is σ = 169019136. Its totient is φ = 100408000.

The previous prime is 133097659. The next prime is 133097683. The reversal of 133097665 is 566790331.

It is not a de Polignac number, because 133097665 - 2⁷ = 133097537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15 + ... + 16315.

It is an arithmetic number, because the mean of its divisors is an integer number (10563696).

Almost surely, 2^133097665 is an apocalyptic number.

It is an amenable number.

133097665 is a deficient number, since it is larger than the sum of its proper divisors (35921471).

133097665 is a wasteful number, since it uses less digits than its factorization.

133097665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16400.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 133097665 is about 11536.7961323757. The cubic root of 133097665 is about 510.5717859747.

The spelling of 133097665 in words is "one hundred thirty-three million, ninety-seven thousand, six hundred sixty-five".