133429249 has 4 divisors (see below), whose sum is σ = 135946836. Its totient is φ = 130911664.

The previous prime is 133429237. The next prime is 133429271. The reversal of 133429249 is 942924331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89113600 + 44315649 = 9440^2 + 6657^2 .

It is a cyclic number.

It is not a de Polignac number, because 133429249 - 2⁵ = 133429217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133409249) 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, 1258714 + ... + 1258819.

It is an arithmetic number, because the mean of its divisors is an integer number (33986709).

Almost surely, 2^133429249 is an apocalyptic number.

It is an amenable number.

133429249 is a deficient number, since it is larger than the sum of its proper divisors (2517587).

133429249 is an equidigital number, since it uses as much as digits as its factorization.

133429249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2517586.

The product of its digits is 46656, while the sum is 37.

The square root of 133429249 is about 11551.1579073269. The cubic root of 133429249 is about 510.9954273663.

The spelling of 133429249 in words is "one hundred thirty-three million, four hundred twenty-nine thousand, two hundred forty-nine".