1264995 has 12 divisors (see below), whose sum is σ = 2192736. Its totient is φ = 674640.

The previous prime is 1264981. The next prime is 1264997. The reversal of 1264995 is 5994621.

1264995 is a `hidden beast` number, since 1 + 2 + 649 + 9 + 5 = 666.

It is not a de Polignac number, because 1264995 - 2⁴ = 1264979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1264997) 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 11 ways as a sum of consecutive naturals, for example, 14011 + ... + 14100.

It is an arithmetic number, because the mean of its divisors is an integer number (182728).

2^1264995 is an apocalyptic number.

1264995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1264995 is a deficient number, since it is larger than the sum of its proper divisors (927741).

1264995 is a wasteful number, since it uses less digits than its factorization.

1264995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28122 (or 28119 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 1264995 is about 1124.7199651469. The cubic root of 1264995 is about 108.1507667995.

The spelling of 1264995 in words is "one million, two hundred sixty-four thousand, nine hundred ninety-five".