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1138525 = 5245541
BaseRepresentation
bin100010101111101011101
32010211202121
410111331131
5242413100
640222541
712451213
oct4257535
92124677
101138525
11708433
1246aa51
1330b2ab
14218cb3
1517751a
hex115f5d

1138525 has 6 divisors (see below), whose sum is σ = 1411802. Its totient is φ = 910800.

The previous prime is 1138519. The next prime is 1138547. The reversal of 1138525 is 5258311.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 36 + 1138489 = 6^2 + 1067^2 .

It is not a de Polignac number, because 1138525 - 211 = 1136477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 45541 = 1138525 / (1 + 1 + 3 + 8 + 5 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1138525.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22746 + ... + 22795.

21138525 is an apocalyptic number.

It is an amenable number.

1138525 is a deficient number, since it is larger than the sum of its proper divisors (273277).

1138525 is an equidigital number, since it uses as much as digits as its factorization.

1138525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45551 (or 45546 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 1138525 is about 1067.0168695949. The cubic root of 1138525 is about 104.4193191495.

The spelling of 1138525 in words is "one million, one hundred thirty-eight thousand, five hundred twenty-five".

Divisors: 1 5 25 45541 227705 1138525