Search a number
-
+
131379343 is a prime number
BaseRepresentation
bin1111101010010…
…11000010001111
3100011012202120121
413311023002033
5232113114333
621011525411
73153464104
oct765130217
9304182517
10131379343
1168184277
1237bb9867
13212ac574
141363caab
15b80232d
hex7d4b08f

131379343 has 2 divisors, whose sum is σ = 131379344. Its totient is φ = 131379342.

The previous prime is 131379329. The next prime is 131379373. The reversal of 131379343 is 343973131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131379343 - 213 = 131371151 is a prime.

It is a super-2 number, since 2×1313793432 = 34521063534223298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131379299 and 131379308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131379373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65689671 + 65689672.

It is an arithmetic number, because the mean of its divisors is an integer number (65689672).

Almost surely, 2131379343 is an apocalyptic number.

131379343 is a deficient number, since it is larger than the sum of its proper divisors (1).

131379343 is an equidigital number, since it uses as much as digits as its factorization.

131379343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 34.

The square root of 131379343 is about 11462.0828386467. The cubic root of 131379343 is about 508.3650617002.

It can be divided in two parts, 1313 and 79343, that added together give a square (80656 = 2842).

The spelling of 131379343 in words is "one hundred thirty-one million, three hundred seventy-nine thousand, three hundred forty-three".