1421616337 has 8 divisors (see below), whose sum is σ = 1471069440. Its totient is φ = 1372192080.

The previous prime is 1421616299. The next prime is 1421616341. The reversal of 1421616337 is 7336161241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421616337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421616037) 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, 155968 + ... + 164830.

It is an arithmetic number, because the mean of its divisors is an integer number (183883680).

Almost surely, 2^1421616337 is an apocalyptic number.

It is an amenable number.

1421616337 is a deficient number, since it is larger than the sum of its proper divisors (49453103).

1421616337 is an equidigital number, since it uses as much as digits as its factorization.

1421616337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14423.

The product of its digits is 18144, while the sum is 34.

The square root of 1421616337 is about 37704.3278285133. The cubic root of 1421616337 is about 1124.4171695776.

Adding to 1421616337 its reverse (7336161241), we get a palindrome (8757777578).

The spelling of 1421616337 in words is "one billion, four hundred twenty-one million, six hundred sixteen thousand, three hundred thirty-seven".