131878474 has 48 divisors (see below), whose sum is σ = 247181760. Its totient is φ = 51667200.

The previous prime is 131878441. The next prime is 131878477. The reversal of 131878474 is 474878131.

It is a self number, because there is not a number n which added to its sum of digits gives 131878474.

It is not an unprimeable number, because it can be changed into a prime (131878477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 328674 + ... + 329074.

It is an arithmetic number, because the mean of its divisors is an integer number (5149620).

Almost surely, 2^131878474 is an apocalyptic number.

131878474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

131878474 is a deficient number, since it is larger than the sum of its proper divisors (115303286).

131878474 is a wasteful number, since it uses less digits than its factorization.

131878474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 562 counting only the distinct ones).

The product of its digits is 150528, while the sum is 43.

The square root of 131878474 is about 11483.8353349393. The cubic root of 131878474 is about 509.0080346834.

The spelling of 131878474 in words is "one hundred thirty-one million, eight hundred seventy-eight thousand, four hundred seventy-four".