1421997227 has 8 divisors (see below), whose sum is σ = 1625824992. Its totient is φ = 1218340800.

The previous prime is 1421997163. The next prime is 1421997263. The reversal of 1421997227 is 7227991241.

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 1421997227 - 2⁶ = 1421997163 is a prime.

It is a super-2 number, since 2×1421997227² = 4044152227191379058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421997127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24524 + ... + 58697.

It is an arithmetic number, because the mean of its divisors is an integer number (203228124).

Almost surely, 2^1421997227 is an apocalyptic number.

1421997227 is a deficient number, since it is larger than the sum of its proper divisors (203827765).

1421997227 is an equidigital number, since it uses as much as digits as its factorization.

1421997227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85669.

The product of its digits is 127008, while the sum is 44.

The square root of 1421997227 is about 37709.3785019059. The cubic root of 1421997227 is about 1124.5175813415.

The spelling of 1421997227 in words is "one billion, four hundred twenty-one million, nine hundred ninety-seven thousand, two hundred twenty-seven".