1264560105 has 16 divisors (see below), whose sum is σ = 2129785920. Its totient is φ = 638935488.

The previous prime is 1264560083. The next prime is 1264560107. The reversal of 1264560105 is 5010654621.

It is not a de Polignac number, because 1264560105 - 2⁶ = 1264560041 is a prime.

It is a super-2 number, since 2×1264560105² = 3198224518315222050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1264560107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2218242 + ... + 2218811.

It is an arithmetic number, because the mean of its divisors is an integer number (133111620).

Almost surely, 2^1264560105 is an apocalyptic number.

1264560105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1264560105 is a deficient number, since it is larger than the sum of its proper divisors (865225815).

1264560105 is a wasteful number, since it uses less digits than its factorization.

1264560105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4437080.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1264560105 is about 35560.6538888137. The cubic root of 1264560105 is about 1081.3837159409.

The spelling of 1264560105 in words is "one billion, two hundred sixty-four million, five hundred sixty thousand, one hundred five".