132405249 has 4 divisors (see below), whose sum is σ = 176540336. Its totient is φ = 88270164.

The previous prime is 132405149. The next prime is 132405269. The reversal of 132405249 is 942504231.

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 not a de Polignac number, because 132405249 - 2⁷ = 132405121 is a prime.

It is a super-2 number, since 2×132405249² = 35062299925504002, 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 (132405269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22067539 + ... + 22067544.

It is an arithmetic number, because the mean of its divisors is an integer number (44135084).

Almost surely, 2^132405249 is an apocalyptic number.

It is an amenable number.

132405249 is a deficient number, since it is larger than the sum of its proper divisors (44135087).

132405249 is an equidigital number, since it uses as much as digits as its factorization.

132405249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44135086.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 132405249 is about 11506.7479767309. The cubic root of 132405249 is about 509.6848610574.

The spelling of 132405249 in words is "one hundred thirty-two million, four hundred five thousand, two hundred forty-nine".