131404330 has 8 divisors (see below), whose sum is σ = 236527812. Its totient is φ = 52561728.

The previous prime is 131404327. The next prime is 131404363. The reversal of 131404330 is 33404131.

It can be written as a sum of positive squares in 2 ways, for example, as 122168809 + 9235521 = 11053^2 + 3039^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 131404298 and 131404307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6570207 + ... + 6570226.

Almost surely, 2^131404330 is an apocalyptic number.

131404330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131404330 is a deficient number, since it is larger than the sum of its proper divisors (105123482).

131404330 is a wasteful number, since it uses less digits than its factorization.

131404330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13140440.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 131404330 is about 11463.1727719685. The cubic root of 131404330 is about 508.3972882596.

Adding to 131404330 its reverse (33404131), we get a palindrome (164808461).

The spelling of 131404330 in words is "one hundred thirty-one million, four hundred four thousand, three hundred thirty".