1405023205 has 16 divisors (see below), whose sum is σ = 1694032704. Its totient is φ = 1118698240.

The previous prime is 1405023203. The next prime is 1405023211. The reversal of 1405023205 is 5023205041.

It is not a de Polignac number, because 1405023205 - 2¹ = 1405023203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405023203) 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, 1594365 + ... + 1595245.

It is an arithmetic number, because the mean of its divisors is an integer number (105877044).

Almost surely, 2^1405023205 is an apocalyptic number.

It is an amenable number.

1405023205 is a deficient number, since it is larger than the sum of its proper divisors (289009499).

1405023205 is an equidigital number, since it uses as much as digits as its factorization.

1405023205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1405023205 is about 37483.6391643074. The cubic root of 1405023205 is about 1120.0252983763.

Adding to 1405023205 its reverse (5023205041), we get a palindrome (6428228246).

The spelling of 1405023205 in words is "one billion, four hundred five million, twenty-three thousand, two hundred five".