133077449 has 4 divisors (see below), whose sum is σ = 133132560. Its totient is φ = 133022340.

The previous prime is 133077443. The next prime is 133077473. The reversal of 133077449 is 944770331.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 944770331 = 163 ⋅5796137.

It is a cyclic number.

It is not a de Polignac number, because 133077449 - 2⁸ = 133077193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133077443) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23759 + ... + 28820.

It is an arithmetic number, because the mean of its divisors is an integer number (33283140).

Almost surely, 2^133077449 is an apocalyptic number.

It is an amenable number.

133077449 is a deficient number, since it is larger than the sum of its proper divisors (55111).

133077449 is an equidigital number, since it uses as much as digits as its factorization.

133077449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55110.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 133077449 is about 11535.9199459774. The cubic root of 133077449 is about 510.5459346776.

The spelling of 133077449 in words is "one hundred thirty-three million, seventy-seven thousand, four hundred forty-nine".