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1307137 = 13100549
BaseRepresentation
bin100111111001000000001
32110102001111
410333020001
5313312022
644003321
714052616
oct4771001
92412044
101307137
11813087
12530541
13369c70
1426050d
151ac477
hex13f201

1307137 has 4 divisors (see below), whose sum is σ = 1407700. Its totient is φ = 1206576.

The previous prime is 1307123. The next prime is 1307153. The reversal of 1307137 is 7317031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 309136 + 998001 = 556^2 + 999^2 .

It is a cyclic number.

It is not a de Polignac number, because 1307137 - 219 = 782849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1307107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50262 + ... + 50287.

It is an arithmetic number, because the mean of its divisors is an integer number (351925).

21307137 is an apocalyptic number.

It is an amenable number.

1307137 is a deficient number, since it is larger than the sum of its proper divisors (100563).

1307137 is a wasteful number, since it uses less digits than its factorization.

1307137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100562.

The product of its (nonzero) digits is 441, while the sum is 22.

The square root of 1307137 is about 1143.3009227671. The cubic root of 1307137 is about 109.3386488178.

It can be divided in two parts, 1307 and 137, that added together give a square (1444 = 382).

The spelling of 1307137 in words is "one million, three hundred seven thousand, one hundred thirty-seven".

Divisors: 1 13 100549 1307137