146728897 has 8 divisors (see below), whose sum is σ = 167763456. Its totient is φ = 125712672.

The previous prime is 146728889. The next prime is 146728909. The reversal of 146728897 is 798827641.

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

It is a cyclic number.

It is not a de Polignac number, because 146728897 - 2³ = 146728889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146728807) 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, 28848 + ... + 33550.

It is an arithmetic number, because the mean of its divisors is an integer number (20970432).

Almost surely, 2^146728897 is an apocalyptic number.

It is an amenable number.

146728897 is a deficient number, since it is larger than the sum of its proper divisors (21034559).

146728897 is an equidigital number, since it uses as much as digits as its factorization.

146728897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9167.

The product of its digits is 1354752, while the sum is 52.

The square root of 146728897 is about 12113.1703942444. The cubic root of 146728897 is about 527.4385687991.

The spelling of 146728897 in words is "one hundred forty-six million, seven hundred twenty-eight thousand, eight hundred ninety-seven".