1264249 has 6 divisors (see below), whose sum is σ = 1470714. Its totient is φ = 1083600.

The previous prime is 1264231. The next prime is 1264259. The reversal of 1264249 is 9424621.

It can be written as a sum of positive squares in only one way, i.e., 1087849 + 176400 = 1043^2 + 420^2 .

It is not a de Polignac number, because 1264249 - 2¹⁵ = 1231481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1264259) 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 5 ways as a sum of consecutive naturals, for example, 12852 + ... + 12949.

It is an arithmetic number, because the mean of its divisors is an integer number (245119).

2^1264249 is an apocalyptic number.

It is an amenable number.

1264249 is a deficient number, since it is larger than the sum of its proper divisors (206465).

1264249 is an equidigital number, since it uses as much as digits as its factorization.

1264249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25815 (or 25808 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 1264249 is about 1124.3882781317. The cubic root of 1264249 is about 108.1295028586.

It can be divided in two parts, 12 and 64249, that added together give a triangular number (64261 = T₃₅₈).

The spelling of 1264249 in words is "one million, two hundred sixty-four thousand, two hundred forty-nine".