1400206105 has 16 divisors (see below), whose sum is σ = 1781326080. Its totient is φ = 1052945152.

The previous prime is 1400206097. The next prime is 1400206147. The reversal of 1400206105 is 5016020041.

It is a cyclic number.

It is not a de Polignac number, because 1400206105 - 2³ = 1400206097 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60336 + ... + 80254.

It is an arithmetic number, because the mean of its divisors is an integer number (111332880).

Almost surely, 2^1400206105 is an apocalyptic number.

It is an amenable number.

1400206105 is a deficient number, since it is larger than the sum of its proper divisors (381119975).

1400206105 is a wasteful number, since it uses less digits than its factorization.

1400206105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20768.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1400206105 is about 37419.3279602935. The cubic root of 1400206105 is about 1118.7438363840.

Adding to 1400206105 its reverse (5016020041), we get a palindrome (6416226146).

The spelling of 1400206105 in words is "one billion, four hundred million, two hundred six thousand, one hundred five".