131144302 has 4 divisors (see below), whose sum is σ = 196716456. Its totient is φ = 65572150.

The previous prime is 131144267. The next prime is 131144303. The reversal of 131144302 is 203441131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 203441131 = 1721 ⋅118211.

It is a self number, because there is not a number n which added to its sum of digits gives 131144302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131144303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32786074 + ... + 32786077.

It is an arithmetic number, because the mean of its divisors is an integer number (49179114).

Almost surely, 2^131144302 is an apocalyptic number.

131144302 is a deficient number, since it is larger than the sum of its proper divisors (65572154).

131144302 is an equidigital number, since it uses as much as digits as its factorization.

131144302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65572153.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 131144302 is about 11451.8252693621. The cubic root of 131144302 is about 508.0617213741.

Adding to 131144302 its reverse (203441131), we get a palindrome (334585433).

The spelling of 131144302 in words is "one hundred thirty-one million, one hundred forty-four thousand, three hundred two".