131127242 has 4 divisors (see below), whose sum is σ = 196690866. Its totient is φ = 65563620.

The previous prime is 131127233. The next prime is 131127251. The reversal of 131127242 is 242721131.

131127242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242721131 = 73 ⋅3324947.

It is an interprime number because it is at equal distance from previous prime (131127233) and next prime (131127251).

It can be written as a sum of positive squares in only one way, i.e., 68574961 + 62552281 = 8281^2 + 7909^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32781809 + ... + 32781812.

Almost surely, 2^131127242 is an apocalyptic number.

131127242 is a deficient number, since it is larger than the sum of its proper divisors (65563624).

131127242 is an equidigital number, since it uses as much as digits as its factorization.

131127242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65563623.

The product of its digits is 672, while the sum is 23.

The square root of 131127242 is about 11451.0803857103. The cubic root of 131127242 is about 508.0396898950.

Adding to 131127242 its reverse (242721131), we get a palindrome (373848373).

The spelling of 131127242 in words is "one hundred thirty-one million, one hundred twenty-seven thousand, two hundred forty-two".