1621163083 has 8 divisors (see below), whose sum is σ = 1669988880. Its totient is φ = 1572779520.

The previous prime is 1621163053. The next prime is 1621163111. The reversal of 1621163083 is 3803611261.

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 1621163083 - 2¹⁷ = 1621032011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1621163053) 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, 103110 + ... + 117787.

It is an arithmetic number, because the mean of its divisors is an integer number (208748610).

Almost surely, 2^1621163083 is an apocalyptic number.

1621163083 is a deficient number, since it is larger than the sum of its proper divisors (48825797).

1621163083 is a wasteful number, since it uses less digits than its factorization.

1621163083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221117.

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

The square root of 1621163083 is about 40263.6695173205. The cubic root of 1621163083 is about 1174.7412940017.

The spelling of 1621163083 in words is "one billion, six hundred twenty-one million, one hundred sixty-three thousand, eighty-three".