1253103 has 8 divisors (see below), whose sum is σ = 1680000. Its totient is φ = 830808.

The previous prime is 1253099. The next prime is 1253111. The reversal of 1253103 is 3013521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1253103 - 2² = 1253099 is a prime.

1253103 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453 + ... + 1646.

It is an arithmetic number, because the mean of its divisors is an integer number (210000).

2^1253103 is an apocalyptic number.

1253103 is a deficient number, since it is larger than the sum of its proper divisors (426897).

1253103 is a wasteful number, since it uses less digits than its factorization.

1253103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1253103 is about 1119.4208323950. The cubic root of 1253103 is about 107.8107969905.

Adding to 1253103 its reverse (3013521), we get a palindrome (4266624).

The spelling of 1253103 in words is "one million, two hundred fifty-three thousand, one hundred three".