131540214 has 32 divisors (see below), whose sum is σ = 286917120. Its totient is φ = 39959712.

The previous prime is 131540191. The next prime is 131540221. The reversal of 131540214 is 412045131.

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 15 ways as a sum of consecutive naturals, for example, 4512 + ... + 16835.

It is an arithmetic number, because the mean of its divisors is an integer number (8966160).

Almost surely, 2^131540214 is an apocalyptic number.

131540214 is an abundant number, since it is smaller than the sum of its proper divisors (155376906).

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

131540214 is a wasteful number, since it uses less digits than its factorization.

131540214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21444.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 131540214 is about 11469.0982208716. The cubic root of 131540214 is about 508.5724708634.

Adding to 131540214 its reverse (412045131), we get a palindrome (543585345).

The spelling of 131540214 in words is "one hundred thirty-one million, five hundred forty thousand, two hundred fourteen".