1268357 has 2 divisors, whose sum is σ = 1268358. Its totient is φ = 1268356.

The previous prime is 1268341. The next prime is 1268359. The reversal of 1268357 is 7538621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 857476 + 410881 = 926^2 + 641^2 .

It is a cyclic number.

It is not a de Polignac number, because 1268357 - 2⁴ = 1268341 is a prime.

Together with 1268359, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1268359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634178 + 634179.

It is an arithmetic number, because the mean of its divisors is an integer number (634179).

2^1268357 is an apocalyptic number.

It is an amenable number.

1268357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268357 is an equidigital number, since it uses as much as digits as its factorization.

1268357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 32.

The square root of 1268357 is about 1126.2135676682. The cubic root of 1268357 is about 108.2464934585.

It can be divided in two parts, 1268 and 357, that multiplied together give a triangular number (452676 = T₉₅₁).

The spelling of 1268357 in words is "one million, two hundred sixty-eight thousand, three hundred fifty-seven".