132240431 has 4 divisors (see below), whose sum is σ = 132279864. Its totient is φ = 132201000.

The previous prime is 132240421. The next prime is 132240461. The reversal of 132240431 is 134042231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134042231 = 37 ⋅3622763.

It is a cyclic number.

It is not a de Polignac number, because 132240431 - 2¹⁰ = 132239407 is a prime.

It is a super-2 number, since 2×132240431² = 34975063182131522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132240421) 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, 14165 + ... + 21566.

It is an arithmetic number, because the mean of its divisors is an integer number (33069966).

Almost surely, 2^132240431 is an apocalyptic number.

132240431 is a deficient number, since it is larger than the sum of its proper divisors (39433).

132240431 is an equidigital number, since it uses as much as digits as its factorization.

132240431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39432.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 132240431 is about 11499.5839489957. The cubic root of 132240431 is about 509.4732880753.

Adding to 132240431 its reverse (134042231), we get a palindrome (266282662).

The spelling of 132240431 in words is "one hundred thirty-two million, two hundred forty thousand, four hundred thirty-one".