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1354740581 is a prime number
BaseRepresentation
bin101000010111111…
…1011001101100101
310111102011221201002
41100233323031211
510233303144311
6342232443045
745400050665
oct12057731545
93442157632
101354740581
11635796717
12319849485
1318789305c
14cbcd01a5
157de0493b
hex50bfb365

1354740581 has 2 divisors, whose sum is σ = 1354740582. Its totient is φ = 1354740580.

The previous prime is 1354740551. The next prime is 1354740599. The reversal of 1354740581 is 1850474531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 866772481 + 487968100 = 29441^2 + 22090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1354740581 is a prime.

It is a super-2 number, since 2×13547405812 = 3670644083616435122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1354740511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677370290 + 677370291.

It is an arithmetic number, because the mean of its divisors is an integer number (677370291).

Almost surely, 21354740581 is an apocalyptic number.

It is an amenable number.

1354740581 is a deficient number, since it is larger than the sum of its proper divisors (1).

1354740581 is an equidigital number, since it uses as much as digits as its factorization.

1354740581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 1354740581 is about 36806.8007438843. The cubic root of 1354740581 is about 1106.5016012316.

The spelling of 1354740581 in words is "one billion, three hundred fifty-four million, seven hundred forty thousand, five hundred eighty-one".