1622231165 has 8 divisors (see below), whose sum is σ = 1948590168. Its totient is φ = 1296509760.

The previous prime is 1622231159. The next prime is 1622231167. The reversal of 1622231165 is 5611322261.

It can be written as a sum of positive squares in 4 ways, for example, as 34128964 + 1588102201 = 5842^2 + 39851^2 .

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

It is not a de Polignac number, because 1622231165 - 2¹⁸ = 1621969021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622231167) 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, 153782 + ... + 163991.

It is an arithmetic number, because the mean of its divisors is an integer number (243573771).

Almost surely, 2^1622231165 is an apocalyptic number.

It is an amenable number.

1622231165 is a deficient number, since it is larger than the sum of its proper divisors (326359003).

1622231165 is a wasteful number, since it uses less digits than its factorization.

1622231165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318799.

The product of its digits is 4320, while the sum is 29.

The square root of 1622231165 is about 40276.9309282621. The cubic root of 1622231165 is about 1174.9992249882. Note that the first 3 decimals are identical.

The spelling of 1622231165 in words is "one billion, six hundred twenty-two million, two hundred thirty-one thousand, one hundred sixty-five".