1253145 has 16 divisors (see below), whose sum is σ = 2111040. Its totient is φ = 633024.

The previous prime is 1253137. The next prime is 1253167. The reversal of 1253145 is 5413521.

1253145 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 1253145 - 2³ = 1253137 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1914 + ... + 2483.

It is an arithmetic number, because the mean of its divisors is an integer number (131940).

2^1253145 is an apocalyptic number.

1253145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1253145 is a deficient number, since it is larger than the sum of its proper divisors (857895).

1253145 is a wasteful number, since it uses less digits than its factorization.

1253145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4424.

The product of its digits is 600, while the sum is 21.

The square root of 1253145 is about 1119.4395919388. The cubic root of 1253145 is about 107.8120014680.

Adding to 1253145 its reverse (5413521), we get a palindrome (6666666).

The spelling of 1253145 in words is "one million, two hundred fifty-three thousand, one hundred forty-five".