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11142539 is a prime number
BaseRepresentation
bin101010100000…
…010110001011
3202222002200122
4222200112023
510323030124
61034453455
7163465352
oct52402613
922862618
1011142539
116320611
12389428b
132401925
1416a0999
15ea175e
hexaa058b

11142539 has 2 divisors, whose sum is σ = 11142540. Its totient is φ = 11142538.

The previous prime is 11142491. The next prime is 11142553. The reversal of 11142539 is 93524111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11142539 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11142839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5571269 + 5571270.

It is an arithmetic number, because the mean of its divisors is an integer number (5571270).

Almost surely, 211142539 is an apocalyptic number.

11142539 is a deficient number, since it is larger than the sum of its proper divisors (1).

11142539 is an equidigital number, since it uses as much as digits as its factorization.

11142539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 26.

The square root of 11142539 is about 3338.0441878441. The cubic root of 11142539 is about 223.3545072868.

The spelling of 11142539 in words is "eleven million, one hundred forty-two thousand, five hundred thirty-nine".