131728093 has 8 divisors (see below), whose sum is σ = 151032960. Its totient is φ = 112544880.

The previous prime is 131728073. The next prime is 131728109. The reversal of 131728093 is 390827131.

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

It is not a de Polignac number, because 131728093 - 2⁹ = 131727581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131728013) 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, 28078 + ... + 32431.

It is an arithmetic number, because the mean of its divisors is an integer number (18879120).

Almost surely, 2^131728093 is an apocalyptic number.

It is an amenable number.

131728093 is a deficient number, since it is larger than the sum of its proper divisors (19304867).

131728093 is an equidigital number, since it uses as much as digits as its factorization.

131728093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60827.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 131728093 is about 11477.2859596683. The cubic root of 131728093 is about 508.8144871741.

The spelling of 131728093 in words is "one hundred thirty-one million, seven hundred twenty-eight thousand, ninety-three".