130331252 has 6 divisors (see below), whose sum is σ = 228079698. Its totient is φ = 65165624.

The previous prime is 130331239. The next prime is 130331263. The reversal of 130331252 is 252133031.

It can be written as a sum of positive squares in only one way, i.e., 85119076 + 45212176 = 9226^2 + 6724^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16291403 + ... + 16291410.

It is an arithmetic number, because the mean of its divisors is an integer number (38013283).

Almost surely, 2^130331252 is an apocalyptic number.

It is an amenable number.

130331252 is a deficient number, since it is larger than the sum of its proper divisors (97748446).

130331252 is a wasteful number, since it uses less digits than its factorization.

130331252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32582817 (or 32582815 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 130331252 is about 11416.2713702855. The cubic root of 130331252 is about 507.0096075840.

Adding to 130331252 its reverse (252133031), we get a palindrome (382464283).

The spelling of 130331252 in words is "one hundred thirty million, three hundred thirty-one thousand, two hundred fifty-two".