132720478 has 8 divisors (see below), whose sum is σ = 217179000. Its totient is φ = 60327480.

The previous prime is 132720473. The next prime is 132720481. The reversal of 132720478 is 874027231.

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

It is a super-2 number, since 2×132720478² = 35229450561096968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132720473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3016353 + ... + 3016396.

It is an arithmetic number, because the mean of its divisors is an integer number (27147375).

Almost surely, 2^132720478 is an apocalyptic number.

132720478 is a deficient number, since it is larger than the sum of its proper divisors (84458522).

132720478 is a wasteful number, since it uses less digits than its factorization.

132720478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6032762.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 132720478 is about 11520.4374048905. The cubic root of 132720478 is about 510.0890245719.

The spelling of 132720478 in words is "one hundred thirty-two million, seven hundred twenty thousand, four hundred seventy-eight".