1272377 has 2 divisors, whose sum is σ = 1272378. Its totient is φ = 1272376.

The previous prime is 1272367. The next prime is 1272379. The reversal of 1272377 is 7732721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 657721 + 614656 = 811^2 + 784^2 .

It is a cyclic number.

It is not a de Polignac number, because 1272377 - 2⁴ = 1272361 is a prime.

Together with 1272379, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₉₈₀₈₄ and since 1272377 and 98084 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 (1272379) 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, 636188 + 636189.

It is an arithmetic number, because the mean of its divisors is an integer number (636189).

2^1272377 is an apocalyptic number.

It is an amenable number.

1272377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272377 is an equidigital number, since it uses as much as digits as its factorization.

1272377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4116, while the sum is 29.

The square root of 1272377 is about 1127.9968971589. The cubic root of 1272377 is about 108.3607336346.

The spelling of 1272377 in words is "one million, two hundred seventy-two thousand, three hundred seventy-seven".