1252777 has 2 divisors, whose sum is σ = 1252778. Its totient is φ = 1252776.

The previous prime is 1252751. The next prime is 1252799. The reversal of 1252777 is 7772521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1115136 + 137641 = 1056^2 + 371^2 .

It is an emirp because it is prime and its reverse (7772521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1252777 - 2¹⁹ = 728489 is a prime.

1252777 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1252717) 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, 626388 + 626389.

It is an arithmetic number, because the mean of its divisors is an integer number (626389).

2^1252777 is an apocalyptic number.

It is an amenable number.

1252777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252777 is an equidigital number, since it uses as much as digits as its factorization.

1252777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6860, while the sum is 31.

The square root of 1252777 is about 1119.2752119117. The cubic root of 1252777 is about 107.8014470360.

The spelling of 1252777 in words is "one million, two hundred fifty-two thousand, seven hundred seventy-seven".