131024245 has 12 divisors (see below), whose sum is σ = 172822860. Its totient is φ = 95289920.

The previous prime is 131024227. The next prime is 131024263. The reversal of 131024245 is 542420131.

It is an interprime number because it is at equal distance from previous prime (131024227) and next prime (131024263).

It can be written as a sum of positive squares in 2 ways, for example, as 61685316 + 69338929 = 7854^2 + 8327^2 .

It is a de Polignac number, because none of the positive numbers 2^k-131024245 is a prime.

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, 107680 + ... + 108889.

It is an arithmetic number, because the mean of its divisors is an integer number (14401905).

Almost surely, 2^131024245 is an apocalyptic number.

It is an amenable number.

131024245 is a deficient number, since it is larger than the sum of its proper divisors (41798615).

131024245 is a wasteful number, since it uses less digits than its factorization.

131024245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216596 (or 216585 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 131024245 is about 11446.5822410010. The cubic root of 131024245 is about 507.9066377809.

Adding to 131024245 its reverse (542420131), we get a palindrome (673444376).

The spelling of 131024245 in words is "one hundred thirty-one million, twenty-four thousand, two hundred forty-five".