1421262005 has 8 divisors (see below), whose sum is σ = 1708106400. Its totient is φ = 1135281616.

The previous prime is 1421261987. The next prime is 1421262013. The reversal of 1421262005 is 5002621241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1421262005 - 2¹⁴ = 1421245621 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212375 + ... + 218964.

It is an arithmetic number, because the mean of its divisors is an integer number (213513300).

Almost surely, 2^1421262005 is an apocalyptic number.

It is an amenable number.

1421262005 is a deficient number, since it is larger than the sum of its proper divisors (286844395).

1421262005 is an equidigital number, since it uses as much as digits as its factorization.

1421262005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432003.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1421262005 is about 37699.6287116995. The cubic root of 1421262005 is about 1124.3237430367.

Adding to 1421262005 its reverse (5002621241), we get a palindrome (6423883246).

The spelling of 1421262005 in words is "one billion, four hundred twenty-one million, two hundred sixty-two thousand, five".