131241424 has 10 divisors (see below), whose sum is σ = 254280290. Its totient is φ = 65620704.

The previous prime is 131241421. The next prime is 131241449. The reversal of 131241424 is 424142131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 129960000 + 1281424 = 11400^2 + 1132^2 .

It is a super-2 number, since 2×131241424² = 34448622747095552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131241395 and 131241404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131241421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4101279 + ... + 4101310.

It is an arithmetic number, because the mean of its divisors is an integer number (25428029).

Almost surely, 2^131241424 is an apocalyptic number.

It is an amenable number.

131241424 is a deficient number, since it is larger than the sum of its proper divisors (123038866).

131241424 is an equidigital number, since it uses as much as digits as its factorization.

131241424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8202597 (or 8202591 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 131241424 is about 11456.0649439500. The cubic root of 131241424 is about 508.1871094487.

Adding to 131241424 its reverse (424142131), we get a palindrome (555383555).

The spelling of 131241424 in words is "one hundred thirty-one million, two hundred forty-one thousand, four hundred twenty-four".