131402343 has 8 divisors (see below), whose sum is σ = 177818368. Its totient is φ = 86293944.
The previous prime is 131402291. The next prime is 131402351. The reversal of 131402343 is 343204131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 131402343 - 217 = 131271271 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131402143) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326671 + ... + 327072.
It is an arithmetic number, because the mean of its divisors is an integer number (22227296).
Almost surely, 2131402343 is an apocalyptic number.
131402343 is a deficient number, since it is larger than the sum of its proper divisors (46416025).
131402343 is an equidigital number, since it uses as much as digits as its factorization.
131402343 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 653813.
The product of its (nonzero) digits is 864, while the sum is 21.
The square root of 131402343 is about 11463.0861027910. The cubic root of 131402343 is about 508.3947257095.
Adding to 131402343 its reverse (343204131), we get a palindrome (474606474).
The spelling of 131402343 in words is "one hundred thirty-one million, four hundred two thousand, three hundred forty-three".
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