1240770105 has 12 divisors (see below), whose sum is σ = 2150668260. Its totient is φ = 661744032.

The previous prime is 1240770077. The next prime is 1240770107. The reversal of 1240770105 is 5010770421.

It can be written as a sum of positive squares in 2 ways, for example, as 601034256 + 639735849 = 24516^2 + 25293^2 .

It is not a de Polignac number, because 1240770105 - 2¹⁰ = 1240769081 is a prime.

It is a super-2 number, since 2×1240770105² = 3079020906923422050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1240770107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13786290 + ... + 13786379.

It is an arithmetic number, because the mean of its divisors is an integer number (179222355).

Almost surely, 2^1240770105 is an apocalyptic number.

1240770105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1240770105 is a deficient number, since it is larger than the sum of its proper divisors (909898155).

1240770105 is a wasteful number, since it uses less digits than its factorization.

1240770105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27572680 (or 27572677 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 1240770105 is about 35224.5667822899. The cubic root of 1240770105 is about 1074.5594315085.

The spelling of 1240770105 in words is "one billion, two hundred forty million, seven hundred seventy thousand, one hundred five".