1264245 has 16 divisors (see below), whose sum is σ = 2047680. Its totient is φ = 665984.

The previous prime is 1264231. The next prime is 1264259. The reversal of 1264245 is 5424621.

It is an interprime number because it is at equal distance from previous prime (1264231) and next prime (1264259).

It is a cyclic number.

It is not a de Polignac number, because 1264245 - 2⁵ = 1264213 is a prime.

1264245 is a lucky number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 862 + ... + 1808.

It is an arithmetic number, because the mean of its divisors is an integer number (127980).

2^1264245 is an apocalyptic number.

1264245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1264245 is a deficient number, since it is larger than the sum of its proper divisors (783435).

1264245 is an equidigital number, since it uses as much as digits as its factorization.

1264245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044.

The product of its digits is 1920, while the sum is 24.

The square root of 1264245 is about 1124.3864993853. The cubic root of 1264245 is about 108.1293888203.

Adding to 1264245 its reverse (5424621), we get a palindrome (6688866).

It can be divided in two parts, 126 and 4245, that added together give a triangular number (4371 = T₉₃).

The spelling of 1264245 in words is "one million, two hundred sixty-four thousand, two hundred forty-five".