131214245 has 16 divisors (see below), whose sum is σ = 167073840. Its totient is φ = 98586624.

The previous prime is 131214221. The next prime is 131214253. The reversal of 131214245 is 542412131.

It can be written as a sum of positive squares in 8 ways, for example, as 6713281 + 124500964 = 2591^2 + 11158^2 .

It is a cyclic number.

It is not a de Polignac number, because 131214245 - 2²⁶ = 64105381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131214245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47009 + ... + 49721.

It is an arithmetic number, because the mean of its divisors is an integer number (10442115).

Almost surely, 2^131214245 is an apocalyptic number.

It is an amenable number.

131214245 is a deficient number, since it is larger than the sum of its proper divisors (35859595).

131214245 is a wasteful number, since it uses less digits than its factorization.

131214245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304.

The product of its digits is 960, while the sum is 23.

The square root of 131214245 is about 11454.8786549662. The cubic root of 131214245 is about 508.1520265950.

Adding to 131214245 its reverse (542412131), we get a palindrome (673626376).

The spelling of 131214245 in words is "one hundred thirty-one million, two hundred fourteen thousand, two hundred forty-five".