1276157 has 2 divisors, whose sum is σ = 1276158. Its totient is φ = 1276156.

The previous prime is 1276147. The next prime is 1276169. The reversal of 1276157 is 7516721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1267876 + 8281 = 1126^2 + 91^2 .

It is an emirp because it is prime and its reverse (7516721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1276157 - 2¹⁰ = 1275133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1276117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638078 + 638079.

It is an arithmetic number, because the mean of its divisors is an integer number (638079).

2^1276157 is an apocalyptic number.

It is an amenable number.

1276157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276157 is an equidigital number, since it uses as much as digits as its factorization.

1276157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2940, while the sum is 29.

The square root of 1276157 is about 1129.6711910994. The cubic root of 1276157 is about 108.4679342054.

The spelling of 1276157 in words is "one million, two hundred seventy-six thousand, one hundred fifty-seven".