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1313141191 is a prime number
BaseRepresentation
bin100111001000100…
…1111000111000111
310101111220111001221
41032101033013013
510142131004231
6334145101211
744353341655
oct11621170707
93344814057
101313141191
1161426345a
12307927807
1317c08952b
14c6581dd5
157a438d11
hex4e44f1c7

1313141191 has 2 divisors, whose sum is σ = 1313141192. Its totient is φ = 1313141190.

The previous prime is 1313141177. The next prime is 1313141213. The reversal of 1313141191 is 1911413131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1313141191 - 229 = 776270279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313141171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656570595 + 656570596.

It is an arithmetic number, because the mean of its divisors is an integer number (656570596).

Almost surely, 21313141191 is an apocalyptic number.

1313141191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313141191 is an equidigital number, since it uses as much as digits as its factorization.

1313141191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 25.

The square root of 1313141191 is about 36237.2900614822. The cubic root of 1313141191 is about 1095.0580485340.

The spelling of 1313141191 in words is "one billion, three hundred thirteen million, one hundred forty-one thousand, one hundred ninety-one".