1405145105 has 32 divisors (see below), whose sum is σ = 2106311424. Its totient is φ = 876116736.

The previous prime is 1405145101. The next prime is 1405145117. The reversal of 1405145105 is 5015415041.

It is a cyclic number.

It is not a de Polignac number, because 1405145105 - 2² = 1405145101 is a prime.

It is a super-2 number, since 2×1405145105² = 3948865532210922050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1405145101) 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 31 ways as a sum of consecutive naturals, for example, 7439 + ... + 53531.

It is an arithmetic number, because the mean of its divisors is an integer number (65822232).

Almost surely, 2^1405145105 is an apocalyptic number.

It is an amenable number.

1405145105 is a deficient number, since it is larger than the sum of its proper divisors (701166319).

1405145105 is a wasteful number, since it uses less digits than its factorization.

1405145105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46185.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1405145105 is about 37485.2651717978. The cubic root of 1405145105 is about 1120.0576886208.

The spelling of 1405145105 in words is "one billion, four hundred five million, one hundred forty-five thousand, one hundred five".