131819470 has 16 divisors (see below), whose sum is σ = 237498768. Its totient is φ = 52678080.

The previous prime is 131819461. The next prime is 131819491. The reversal of 131819470 is 74918131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6082 + ... + 17338.

It is an arithmetic number, because the mean of its divisors is an integer number (14843673).

Almost surely, 2^131819470 is an apocalyptic number.

131819470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131819470 is a deficient number, since it is larger than the sum of its proper divisors (105679298).

131819470 is a wasteful number, since it uses less digits than its factorization.

131819470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12435.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 131819470 is about 11481.2660451712. The cubic root of 131819470 is about 508.9321112735.

The spelling of 131819470 in words is "one hundred thirty-one million, eight hundred nineteen thousand, four hundred seventy".