132221746 has 8 divisors (see below), whose sum is σ = 198791964. Its totient is φ = 65957760.

The previous prime is 132221743. The next prime is 132221777. The reversal of 132221746 is 647122231.

It can be written as a sum of positive squares in 2 ways, for example, as 131675625 + 546121 = 11475^2 + 739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (132221743) 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, 75475 + ... + 77206.

Almost surely, 2^132221746 is an apocalyptic number.

132221746 is a deficient number, since it is larger than the sum of its proper divisors (66570218).

132221746 is a wasteful number, since it uses less digits than its factorization.

132221746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153116.

The product of its digits is 4032, while the sum is 28.

The square root of 132221746 is about 11498.7714995994. The cubic root of 132221746 is about 509.4492914889.

Adding to 132221746 its reverse (647122231), we get a palindrome (779343977).

The spelling of 132221746 in words is "one hundred thirty-two million, two hundred twenty-one thousand, seven hundred forty-six".