131344530 has 64 divisors (see below), whose sum is σ = 334540800. Its totient is φ = 32909760.

The previous prime is 131344523. The next prime is 131344537. The reversal of 131344530 is 35443131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131344523) and next prime (131344537).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131344530.

It is not an unprimeable number, because it can be changed into a prime (131344537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73791 + ... + 75549.

It is an arithmetic number, because the mean of its divisors is an integer number (5227200).

Almost surely, 2^131344530 is an apocalyptic number.

131344530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131344530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167270400).

131344530 is an abundant number, since it is smaller than the sum of its proper divisors (203196270).

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

131344530 is a wasteful number, since it uses less digits than its factorization.

131344530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 131344530 is about 11460.5641222411. The cubic root of 131344530 is about 508.3201554110.

Adding to 131344530 its reverse (35443131), we get a palindrome (166787661).

The spelling of 131344530 in words is "one hundred thirty-one million, three hundred forty-four thousand, five hundred thirty".