Search a number
-
+
131204371 is a prime number
BaseRepresentation
bin1111101001000…
…00010100010011
3100010212212120011
413310200110103
5232042014441
621004055351
73152135014
oct764402423
9303785504
10131204371
1168074871
1237b34557
132124aa2c
14135d500b
15b7ba581
hex7d20513

131204371 has 2 divisors, whose sum is σ = 131204372. Its totient is φ = 131204370.

The previous prime is 131204357. The next prime is 131204383. The reversal of 131204371 is 173402131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131204371 - 215 = 131171603 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131207371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65602185 + 65602186.

It is an arithmetic number, because the mean of its divisors is an integer number (65602186).

Almost surely, 2131204371 is an apocalyptic number.

131204371 is a deficient number, since it is larger than the sum of its proper divisors (1).

131204371 is an equidigital number, since it uses as much as digits as its factorization.

131204371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 131204371 is about 11454.4476514584. The cubic root of 131204371 is about 508.1392799633.

The spelling of 131204371 in words is "one hundred thirty-one million, two hundred four thousand, three hundred seventy-one".