133972214 has 8 divisors (see below), whose sum is σ = 201979008. Its totient is φ = 66645880.

The previous prime is 133972213. The next prime is 133972247. The reversal of 133972214 is 412279331.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133972213) 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, 169622 + ... + 170409.

It is an arithmetic number, because the mean of its divisors is an integer number (25247376).

Almost surely, 2^133972214 is an apocalyptic number.

133972214 is a deficient number, since it is larger than the sum of its proper divisors (68006794).

133972214 is a wasteful number, since it uses less digits than its factorization.

133972214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340230.

The product of its digits is 9072, while the sum is 32.

The square root of 133972214 is about 11574.6366681637. The cubic root of 133972214 is about 511.6876222583.

The spelling of 133972214 in words is "one hundred thirty-three million, nine hundred seventy-two thousand, two hundred fourteen".