133265449 has 4 divisors (see below), whose sum is σ = 140279440. Its totient is φ = 126251460.

The previous prime is 133265443. The next prime is 133265459. The reversal of 133265449 is 944562331.

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 133265449 - 2¹¹ = 133263401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133265443) 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, 3506967 + ... + 3507004.

It is an arithmetic number, because the mean of its divisors is an integer number (35069860).

Almost surely, 2^133265449 is an apocalyptic number.

133265449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

133265449 is a deficient number, since it is larger than the sum of its proper divisors (7013991).

133265449 is an equidigital number, since it uses as much as digits as its factorization.

133265449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7013990.

The product of its digits is 77760, while the sum is 37.

The square root of 133265449 is about 11544.0655316920. The cubic root of 133265449 is about 510.7862395359.

The spelling of 133265449 in words is "one hundred thirty-three million, two hundred sixty-five thousand, four hundred forty-nine".