1421134305 has 32 divisors (see below), whose sum is σ = 2331711360. Its totient is φ = 738716160.

The previous prime is 1421134283. The next prime is 1421134307. The reversal of 1421134305 is 5034311241.

It is a happy number.

It is not a de Polignac number, because 1421134305 - 2⁸ = 1421134049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1421134307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 333931 + ... + 338159.

It is an arithmetic number, because the mean of its divisors is an integer number (72865980).

Almost surely, 2^1421134305 is an apocalyptic number.

1421134305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1421134305 is a deficient number, since it is larger than the sum of its proper divisors (910577055).

1421134305 is a wasteful number, since it uses less digits than its factorization.

1421134305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4801.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1421134305 is about 37697.9350230221. The cubic root of 1421134305 is about 1124.2900686352.

Adding to 1421134305 its reverse (5034311241), we get a palindrome (6455445546).

It can be divided in two parts, 14211 and 34305, that added together give a triangular number (48516 = T₃₁₁).

The spelling of 1421134305 in words is "one billion, four hundred twenty-one million, one hundred thirty-four thousand, three hundred five".