131250122 has 4 divisors (see below), whose sum is σ = 196875186. Its totient is φ = 65625060.

The previous prime is 131250113. The next prime is 131250127. The reversal of 131250122 is 221052131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221052131 = 191 ⋅1157341.

It can be written as a sum of positive squares in only one way, i.e., 71048041 + 60202081 = 8429^2 + 7759^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131250122.

It is not an unprimeable number, because it can be changed into a prime (131250127) by changing a digit.

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 as a sum of consecutive naturals, namely, 32812529 + ... + 32812532.

Almost surely, 2^131250122 is an apocalyptic number.

131250122 is a deficient number, since it is larger than the sum of its proper divisors (65625064).

131250122 is an equidigital number, since it uses as much as digits as its factorization.

131250122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65625063.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 131250122 is about 11456.4445619049. Note that the first 3 decimals coincide. The cubic root of 131250122 is about 508.1983358681.

The spelling of 131250122 in words is "one hundred thirty-one million, two hundred fifty thousand, one hundred twenty-two".