1252005 has 32 divisors (see below), whose sum is σ = 2211840. Its totient is φ = 601920.

The previous prime is 1251983. The next prime is 1252021. The reversal of 1252005 is 5002521.

It is not a de Polignac number, because 1252005 - 2¹⁰ = 1250981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6460 + ... + 6650.

It is an arithmetic number, because the mean of its divisors is an integer number (69120).

2^1252005 is an apocalyptic number.

1252005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1252005 is a deficient number, since it is larger than the sum of its proper divisors (959835).

1252005 is a wasteful number, since it uses less digits than its factorization.

1252005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 1252005 is about 1118.9302927350. The cubic root of 1252005 is about 107.7792989555.

Adding to 1252005 its reverse (5002521), we get a palindrome (6254526).

The spelling of 1252005 in words is "one million, two hundred fifty-two thousand, five".