1267151 has 2 divisors, whose sum is σ = 1267152. Its totient is φ = 1267150.

The previous prime is 1267127. The next prime is 1267157. The reversal of 1267151 is 1517621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1267151 - 2¹⁸ = 1005007 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1267157) 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, 633575 + 633576.

It is an arithmetic number, because the mean of its divisors is an integer number (633576).

2^1267151 is an apocalyptic number.

1267151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1267151 is an equidigital number, since it uses as much as digits as its factorization.

1267151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 420, while the sum is 23.

The square root of 1267151 is about 1125.6780179074. The cubic root of 1267151 is about 108.2121743436.

The spelling of 1267151 in words is "one million, two hundred sixty-seven thousand, one hundred fifty-one".