131422036 has 12 divisors (see below), whose sum is σ = 243517428. Its totient is φ = 61845632.

The previous prime is 131422021. The next prime is 131422043. The reversal of 131422036 is 630224131.

It can be written as a sum of positive squares in 2 ways, for example, as 73205136 + 58216900 = 8556^2 + 7630^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131421998 and 131422016.

It is a congruent number.

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, 966271 + ... + 966406.

It is an arithmetic number, because the mean of its divisors is an integer number (20293119).

Almost surely, 2^131422036 is an apocalyptic number.

It is an amenable number.

131422036 is a deficient number, since it is larger than the sum of its proper divisors (112095392).

131422036 is a wasteful number, since it uses less digits than its factorization.

131422036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932698 (or 1932696 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 131422036 is about 11463.9450452277. The cubic root of 131422036 is about 508.4201217996.

Adding to 131422036 its reverse (630224131), we get a palindrome (761646167).

The spelling of 131422036 in words is "one hundred thirty-one million, four hundred twenty-two thousand, thirty-six".