1252987 has 2 divisors, whose sum is σ = 1252988. Its totient is φ = 1252986.

The previous prime is 1252963. The next prime is 1252991. The reversal of 1252987 is 7892521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1252987 - 2¹¹ = 1250939 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (1252957) 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, 626493 + 626494.

It is an arithmetic number, because the mean of its divisors is an integer number (626494).

2^1252987 is an apocalyptic number.

1252987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252987 is an equidigital number, since it uses as much as digits as its factorization.

1252987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 34.

The square root of 1252987 is about 1119.3690186887. The cubic root of 1252987 is about 107.8074701987.

The spelling of 1252987 in words is "one million, two hundred fifty-two thousand, nine hundred eighty-seven".