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131427379 is a prime number
BaseRepresentation
bin1111101010101…
…10110000110011
3100011022012110201
413311112300303
5232121134004
621012540031
73154054126
oct765266063
9304265421
10131427379
1168207376
1238021617
13212c83a5
14136523bd
15b8116a4
hex7d56c33

131427379 has 2 divisors, whose sum is σ = 131427380. Its totient is φ = 131427378.

The previous prime is 131427377. The next prime is 131427409. The reversal of 131427379 is 973724131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131427379 - 21 = 131427377 is a prime.

Together with 131427377, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (131427371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65713689 + 65713690.

It is an arithmetic number, because the mean of its divisors is an integer number (65713690).

Almost surely, 2131427379 is an apocalyptic number.

131427379 is a deficient number, since it is larger than the sum of its proper divisors (1).

131427379 is an equidigital number, since it uses as much as digits as its factorization.

131427379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 37.

The square root of 131427379 is about 11464.1780778214. The cubic root of 131427379 is about 508.4270116942.

The spelling of 131427379 in words is "one hundred thirty-one million, four hundred twenty-seven thousand, three hundred seventy-nine".