131124142 has 4 divisors (see below), whose sum is σ = 196686216. Its totient is φ = 65562070.

The previous prime is 131124107. The next prime is 131124143. The reversal of 131124142 is 241421131.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131124143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32781034 + ... + 32781037.

It is an arithmetic number, because the mean of its divisors is an integer number (49171554).

Almost surely, 2^131124142 is an apocalyptic number.

131124142 is a deficient number, since it is larger than the sum of its proper divisors (65562074).

131124142 is an equidigital number, since it uses as much as digits as its factorization.

131124142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65562073.

The product of its digits is 192, while the sum is 19.

The square root of 131124142 is about 11450.9450265033. The cubic root of 131124142 is about 508.0356863144.

Adding to 131124142 its reverse (241421131), we get a palindrome (372545273).

The spelling of 131124142 in words is "one hundred thirty-one million, one hundred twenty-four thousand, one hundred forty-two".