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BaseRepresentation
bin100010111101000101011
32011012011202
410113220223
5243123022
640314415
712510215
oct4275053
92135152
101145387
11712601
12472a0b
13311459
1421b5b5
15179592
hex117a2b

1145387 has 2 divisors, whose sum is σ = 1145388. Its totient is φ = 1145386.

The previous prime is 1145381. The next prime is 1145393. The reversal of 1145387 is 7835411.

It is a balanced prime because it is at equal distance from previous prime (1145381) and next prime (1145393).

It is an emirp because it is prime and its reverse (7835411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1145387 - 24 = 1145371 is a prime.

It is a super-2 number, since 2×11453872 = 2623822759538, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1145381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572693 + 572694.

It is an arithmetic number, because the mean of its divisors is an integer number (572694).

21145387 is an apocalyptic number.

1145387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145387 is an equidigital number, since it uses as much as digits as its factorization.

1145387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 29.

The square root of 1145387 is about 1070.2275458985. The cubic root of 1145387 is about 104.6286808665.

The spelling of 1145387 in words is "one million, one hundred forty-five thousand, three hundred eighty-seven".