132231428 has 12 divisors (see below), whose sum is σ = 264462912. Its totient is φ = 56670600.

The previous prime is 132231427. The next prime is 132231481. The reversal of 132231428 is 824132231.

132231428 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 132231397 and 132231406.

It is not an unprimeable number, because it can be changed into a prime (132231427) 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, 2361248 + ... + 2361303.

It is an arithmetic number, because the mean of its divisors is an integer number (22038576).

Almost surely, 2^132231428 is an apocalyptic number.

It is an amenable number.

132231428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

132231428 is a wasteful number, since it uses less digits than its factorization.

132231428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4722562 (or 4722560 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 132231428 is about 11499.1924933884. The cubic root of 132231428 is about 509.4617260740.

Adding to 132231428 its reverse (824132231), we get a palindrome (956363659).

The spelling of 132231428 in words is "one hundred thirty-two million, two hundred thirty-one thousand, four hundred twenty-eight".