131478093 has 8 divisors (see below), whose sum is σ = 194782400. Its totient is φ = 87652044.

The previous prime is 131478091. The next prime is 131478101. The reversal of 131478093 is 390874131.

It is a happy number.

It is not a de Polignac number, because 131478093 - 2¹ = 131478091 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 (131478091) 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, 2434753 + ... + 2434806.

It is an arithmetic number, because the mean of its divisors is an integer number (24347800).

Almost surely, 2^131478093 is an apocalyptic number.

It is an amenable number.

131478093 is a deficient number, since it is larger than the sum of its proper divisors (63304307).

131478093 is an equidigital number, since it uses as much as digits as its factorization.

131478093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4869568 (or 4869562 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 131478093 is about 11466.3897108026. The cubic root of 131478093 is about 508.4923990127.

The spelling of 131478093 in words is "one hundred thirty-one million, four hundred seventy-eight thousand, ninety-three".