1267481 has 2 divisors, whose sum is σ = 1267482. Its totient is φ = 1267480.

The previous prime is 1267463. The next prime is 1267501. The reversal of 1267481 is 1847621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1032256 + 235225 = 1016^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 1267481 - 2¹⁴ = 1251097 is a prime.

It is a super-2 number, since 2×1267481² = 3213016170722, which contains 22 as substring.

It is equal to p₉₇₇₂₄ and since 1267481 and 97724 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1267411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633740 + 633741.

It is an arithmetic number, because the mean of its divisors is an integer number (633741).

2^1267481 is an apocalyptic number.

It is an amenable number.

1267481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1267481 is an equidigital number, since it uses as much as digits as its factorization.

1267481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 29.

The square root of 1267481 is about 1125.8245866919. The cubic root of 1267481 is about 108.2215673094.

The spelling of 1267481 in words is "one million, two hundred sixty-seven thousand, four hundred eighty-one".