132168972 has 24 divisors (see below), whose sum is σ = 332117296. Its totient is φ = 40667328.

The previous prime is 132168943. The next prime is 132168973. The reversal of 132168972 is 279861231.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 132168972.

It is not an unprimeable number, because it can be changed into a prime (132168973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423463 + ... + 423774.

Almost surely, 2^132168972 is an apocalyptic number.

132168972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

132168972 is an abundant number, since it is smaller than the sum of its proper divisors (199948324).

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

132168972 is a wasteful number, since it uses less digits than its factorization.

132168972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847257 (or 847255 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 132168972 is about 11496.4765036945. The cubic root of 132168972 is about 509.3815032078.

The spelling of 132168972 in words is "one hundred thirty-two million, one hundred sixty-eight thousand, nine hundred seventy-two".