131771950 has 24 divisors (see below), whose sum is σ = 251077680. Its totient is φ = 51422400.

The previous prime is 131771929. The next prime is 131771977. The reversal of 131771950 is 59177131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30090 + ... + 34189.

It is an arithmetic number, because the mean of its divisors is an integer number (10461570).

Almost surely, 2^131771950 is an apocalyptic number.

131771950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131771950 is a deficient number, since it is larger than the sum of its proper divisors (119305730).

131771950 is a wasteful number, since it uses less digits than its factorization.

131771950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64332 (or 64327 counting only the distinct ones).

The product of its (nonzero) digits is 6615, while the sum is 34.

The square root of 131771950 is about 11479.1964004455. The cubic root of 131771950 is about 508.8709484306.

The spelling of 131771950 in words is "one hundred thirty-one million, seven hundred seventy-one thousand, nine hundred fifty".