1421234205 has 16 divisors (see below), whose sum is σ = 2277823680. Its totient is φ = 756708608.

The previous prime is 1421234201. The next prime is 1421234249. The reversal of 1421234205 is 5024321241.

It is a cyclic number.

It is not a de Polignac number, because 1421234205 - 2² = 1421234201 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421234201) 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, 70995 + ... + 88784.

It is an arithmetic number, because the mean of its divisors is an integer number (142363980).

Almost surely, 2^1421234205 is an apocalyptic number.

1421234205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1421234205 is a deficient number, since it is larger than the sum of its proper divisors (856589475).

1421234205 is a wasteful number, since it uses less digits than its factorization.

1421234205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160380.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1421234205 is about 37699.2600060001. The cubic root of 1421234205 is about 1124.3164123677.

Adding to 1421234205 its reverse (5024321241), we get a palindrome (6445555446).

The spelling of 1421234205 in words is "one billion, four hundred twenty-one million, two hundred thirty-four thousand, two hundred five".