131021752 has 16 divisors (see below), whose sum is σ = 245927160. Its totient is φ = 65441184.

The previous prime is 131021743. The next prime is 131021753. The reversal of 131021752 is 257120131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131021753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238 + ... + 16189.

Almost surely, 2^131021752 is an apocalyptic number.

It is an amenable number.

131021752 is a deficient number, since it is larger than the sum of its proper divisors (114905408).

131021752 is a wasteful number, since it uses less digits than its factorization.

131021752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17430 (or 17426 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 131021752 is about 11446.4733433490. The cubic root of 131021752 is about 507.9034164451.

Adding to 131021752 its reverse (257120131), we get a palindrome (388141883).

The spelling of 131021752 in words is "one hundred thirty-one million, twenty-one thousand, seven hundred fifty-two".