131332145 has 32 divisors (see below), whose sum is σ = 185939712. Its totient is φ = 87190272.

The previous prime is 131332133. The next prime is 131332177. The reversal of 131332145 is 541233131.

It is a cyclic number.

It is not a de Polignac number, because 131332145 - 2¹⁴ = 131315761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131332145.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153539 + ... + 154391.

It is an arithmetic number, because the mean of its divisors is an integer number (5810616).

Almost surely, 2^131332145 is an apocalyptic number.

It is an amenable number.

131332145 is a deficient number, since it is larger than the sum of its proper divisors (54607567).

131332145 is an equidigital number, since it uses as much as digits as its factorization.

131332145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001.

The product of its digits is 1080, while the sum is 23.

The square root of 131332145 is about 11460.0237783348. The cubic root of 131332145 is about 508.3041777300.

Adding to 131332145 its reverse (541233131), we get a palindrome (672565276).

The spelling of 131332145 in words is "one hundred thirty-one million, three hundred thirty-two thousand, one hundred forty-five".