1253147 has 4 divisors (see below), whose sum is σ = 1432176. Its totient is φ = 1074120.

The previous prime is 1253137. The next prime is 1253167. The reversal of 1253147 is 7413521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7413521 = 23 ⋅322327.

It is a cyclic number.

It is not a de Polignac number, because 1253147 - 2¹⁰ = 1252123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253137) 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, 89504 + ... + 89517.

It is an arithmetic number, because the mean of its divisors is an integer number (358044).

2^1253147 is an apocalyptic number.

1253147 is a deficient number, since it is larger than the sum of its proper divisors (179029).

1253147 is an equidigital number, since it uses as much as digits as its factorization.

1253147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179028.

The product of its digits is 840, while the sum is 23.

The square root of 1253147 is about 1119.4404852425. The cubic root of 1253147 is about 107.8120588234.

Adding to 1253147 its reverse (7413521), we get a palindrome (8666668).

The spelling of 1253147 in words is "one million, two hundred fifty-three thousand, one hundred forty-seven".