1252747 has 8 divisors (see below), whose sum is σ = 1350000. Its totient is φ = 1158144.

The previous prime is 1252739. The next prime is 1252751. The reversal of 1252747 is 7472521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1252747 - 2³ = 1252739 is a prime.

It is an Ulam number.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a 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 in 7 ways as a sum of consecutive naturals, for example, 379 + ... + 1627.

It is an arithmetic number, because the mean of its divisors is an integer number (168750).

2^1252747 is an apocalyptic number.

1252747 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1252747 is a deficient number, since it is larger than the sum of its proper divisors (97253).

1252747 is a wasteful number, since it uses less digits than its factorization.

1252747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325.

The product of its digits is 3920, while the sum is 28.

The square root of 1252747 is about 1119.2618103018. The cubic root of 1252747 is about 107.8005865293.

The spelling of 1252747 in words is "one million, two hundred fifty-two thousand, seven hundred forty-seven".