131143202 has 8 divisors (see below), whose sum is σ = 208286316. Its totient is φ = 61714432.

The previous prime is 131143153. The next prime is 131143211. The reversal of 131143202 is 202341131.

It can be written as a sum of positive squares in 2 ways, for example, as 128618281 + 2524921 = 11341^2 + 1589^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1928543 + ... + 1928610.

Almost surely, 2^131143202 is an apocalyptic number.

131143202 is a deficient number, since it is larger than the sum of its proper divisors (77143114).

131143202 is a wasteful number, since it uses less digits than its factorization.

131143202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3857172.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 131143202 is about 11451.7772419830. Note that the first 3 decimals coincide. The cubic root of 131143202 is about 508.0603008791.

Adding to 131143202 its reverse (202341131), we get a palindrome (333484333).

The spelling of 131143202 in words is "one hundred thirty-one million, one hundred forty-three thousand, two hundred two".