133330649 has 4 divisors (see below), whose sum is σ = 133392336. Its totient is φ = 133268964.

The previous prime is 133330583. The next prime is 133330651. The reversal of 133330649 is 946033331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133330649 - 2²⁴ = 116553433 is a prime.

It is a super-2 number, since 2×133330649² = 35554123925522402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133330679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27479 + ... + 31964.

It is an arithmetic number, because the mean of its divisors is an integer number (33348084).

Almost surely, 2^133330649 is an apocalyptic number.

It is an amenable number.

133330649 is a deficient number, since it is larger than the sum of its proper divisors (61687).

133330649 is an equidigital number, since it uses as much as digits as its factorization.

133330649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61686.

The product of its (nonzero) digits is 17496, while the sum is 32.

The square root of 133330649 is about 11546.8891481645. The cubic root of 133330649 is about 510.8695265228.

The spelling of 133330649 in words is "one hundred thirty-three million, three hundred thirty thousand, six hundred forty-nine".