1297903 has 4 divisors (see below), whose sum is σ = 1310608. Its totient is φ = 1285200.

The previous prime is 1297873. The next prime is 1297927. The reversal of 1297903 is 3097921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1297903 - 2¹³ = 1289711 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297963) 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, 6198 + ... + 6403.

It is an arithmetic number, because the mean of its divisors is an integer number (327652).

2^1297903 is an apocalyptic number.

1297903 is a deficient number, since it is larger than the sum of its proper divisors (12705).

1297903 is a wasteful number, since it uses less digits than its factorization.

1297903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12704.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 1297903 is about 1139.2554586220. The cubic root of 1297903 is about 109.0805733684.

The spelling of 1297903 in words is "one million, two hundred ninety-seven thousand, nine hundred three".