1293251 has 2 divisors, whose sum is σ = 1293252. Its totient is φ = 1293250.

The previous prime is 1293247. The next prime is 1293277. The reversal of 1293251 is 1523921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1293251 - 2² = 1293247 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1292251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646625 + 646626.

It is an arithmetic number, because the mean of its divisors is an integer number (646626).

2^1293251 is an apocalyptic number.

1293251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1293251 is an equidigital number, since it uses as much as digits as its factorization.

1293251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 23.

The square root of 1293251 is about 1137.2119415483. The cubic root of 1293251 is about 108.9500935859.

The spelling of 1293251 in words is "one million, two hundred ninety-three thousand, two hundred fifty-one".