131036040 has 48 divisors (see below), whose sum is σ = 425868300. Its totient is φ = 34942848.

The previous prime is 131036029. The next prime is 131036053. The reversal of 131036040 is 40630131.

It can be written as a sum of positive squares in 2 ways, for example, as 128731716 + 2304324 = 11346^2 + 1518^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181635 + ... + 182354.

Almost surely, 2^131036040 is an apocalyptic number.

131036040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131036040 is an abundant number, since it is smaller than the sum of its proper divisors (294832260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131036040 is a wasteful number, since it uses less digits than its factorization.

131036040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364006 (or 363999 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 131036040 is about 11447.0974486985. The cubic root of 131036040 is about 507.9218781639.

Adding to 131036040 its reverse (40630131), we get a palindrome (171666171).

It can be divided in two parts, 1 and 31036040, that added together give a square (31036041 = 5571²).

The spelling of 131036040 in words is "one hundred thirty-one million, thirty-six thousand, forty".