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131448347 is a prime number
BaseRepresentation
bin1111101010110…
…11111000011011
3100011100021020022
413311123320123
5232122321342
621013221055
73154202222
oct765337033
9304307208
10131448347
11682210a8
123803178b
1321304ab4
1413659cb9
15b8179d2
hex7d5be1b

131448347 has 2 divisors, whose sum is σ = 131448348. Its totient is φ = 131448346.

The previous prime is 131448313. The next prime is 131448371. The reversal of 131448347 is 743844131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131448347 - 212 = 131444251 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131448307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65724173 + 65724174.

It is an arithmetic number, because the mean of its divisors is an integer number (65724174).

Almost surely, 2131448347 is an apocalyptic number.

131448347 is a deficient number, since it is larger than the sum of its proper divisors (1).

131448347 is an equidigital number, since it uses as much as digits as its factorization.

131448347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 35.

The square root of 131448347 is about 11465.0925421472. The cubic root of 131448347 is about 508.4540485028.

The spelling of 131448347 in words is "one hundred thirty-one million, four hundred forty-eight thousand, three hundred forty-seven".