131035240 has 64 divisors (see below), whose sum is σ = 337996800. Its totient is φ = 44786688.

The previous prime is 131035237. The next prime is 131035243. The reversal of 131035240 is 42530131.

It is an interprime number because it is at equal distance from previous prime (131035237) and next prime (131035243).

It is not an unprimeable number, because it can be changed into a prime (131035243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133632 + ... + 134608.

It is an arithmetic number, because the mean of its divisors is an integer number (5281200).

Almost surely, 2^131035240 is an apocalyptic number.

131035240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131035240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168998400).

131035240 is an abundant number, since it is smaller than the sum of its proper divisors (206961560).

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

131035240 is a wasteful number, since it uses less digits than its factorization.

131035240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474 (or 1470 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 131035240 is about 11447.0625052893. The cubic root of 131035240 is about 507.9208445085.

Adding to 131035240 its reverse (42530131), we get a palindrome (173565371).

The spelling of 131035240 in words is "one hundred thirty-one million, thirty-five thousand, two hundred forty".