1421616361 has 8 divisors (see below), whose sum is σ = 1618282944. Its totient is φ = 1236187920.

The previous prime is 1421616341. The next prime is 1421616401. The reversal of 1421616361 is 1636161241.

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

It is not a de Polignac number, because 1421616361 - 2²¹ = 1419519209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1421616341) 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, 2809266 + ... + 2809771.

It is an arithmetic number, because the mean of its divisors is an integer number (202285368).

Almost surely, 2^1421616361 is an apocalyptic number.

1421616361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1421616361 is a deficient number, since it is larger than the sum of its proper divisors (196666583).

1421616361 is a wasteful number, since it uses less digits than its factorization.

1421616361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5619071.

The product of its digits is 5184, while the sum is 31.

The square root of 1421616361 is about 37704.3281467791. The cubic root of 1421616361 is about 1124.4171759051.

The spelling of 1421616361 in words is "one billion, four hundred twenty-one million, six hundred sixteen thousand, three hundred sixty-one".