131478276 has 48 divisors (see below), whose sum is σ = 312016320. Its totient is φ = 43084800.

The previous prime is 131478251. The next prime is 131478287. The reversal of 131478276 is 672874131.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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 15 ways as a sum of consecutive naturals, for example, 327676 + ... + 328076.

It is an arithmetic number, because the mean of its divisors is an integer number (6500340).

Almost surely, 2^131478276 is an apocalyptic number.

It is an amenable number.

131478276 is an abundant number, since it is smaller than the sum of its proper divisors (180538044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131478276 is a wasteful number, since it uses less digits than its factorization.

131478276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804 (or 802 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 131478276 is about 11466.3976906437. The cubic root of 131478276 is about 508.4926349305.

The spelling of 131478276 in words is "one hundred thirty-one million, four hundred seventy-eight thousand, two hundred seventy-six".