1262005 has 4 divisors (see below), whose sum is σ = 1514412. Its totient is φ = 1009600.

The previous prime is 1261973. The next prime is 1262011. The reversal of 1262005 is 5002621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5002621 = 13 ⋅384817.

It can be written as a sum of positive squares in 2 ways, for example, as 904401 + 357604 = 951^2 + 598^2 .

It is not a de Polignac number, because 1262005 - 2⁵ = 1261973 is a prime.

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 1262005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126196 + ... + 126205.

It is an arithmetic number, because the mean of its divisors is an integer number (378603).

2^1262005 is an apocalyptic number.

It is an amenable number.

1262005 is a deficient number, since it is larger than the sum of its proper divisors (252407).

1262005 is an equidigital number, since it uses as much as digits as its factorization.

1262005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252406.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1262005 is about 1123.3899590080. The cubic root of 1262005 is about 108.0654895439.

Adding to 1262005 its reverse (5002621), we get a palindrome (6264626).

The spelling of 1262005 in words is "one million, two hundred sixty-two thousand, five".