133422649 has 8 divisors (see below), whose sum is σ = 139293000. Its totient is φ = 127636992.

The previous prime is 133422631. The next prime is 133422683. The reversal of 133422649 is 946224331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 51194025 + 82228624 = 7155^2 + 9068^2 .

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 133422649 - 2¹⁹ = 132898361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133422689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17944 + ... + 24265.

It is an arithmetic number, because the mean of its divisors is an integer number (17411625).

Almost surely, 2^133422649 is an apocalyptic number.

It is an amenable number.

133422649 is a deficient number, since it is larger than the sum of its proper divisors (5870351).

133422649 is a wasteful number, since it uses less digits than its factorization.

133422649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42347.

The product of its digits is 31104, while the sum is 34.

The square root of 133422649 is about 11550.8722181487. The cubic root of 133422649 is about 510.9870018638.

The spelling of 133422649 in words is "one hundred thirty-three million, four hundred twenty-two thousand, six hundred forty-nine".