161227602 has 12 divisors (see below), whose sum is σ = 349326510. Its totient is φ = 53742528.

The previous prime is 161227601. The next prime is 161227603. The reversal of 161227602 is 206722161.

It is an interprime number because it is at equal distance from previous prime (161227601) and next prime (161227603).

It can be written as a sum of positive squares in only one way, i.e., 158231241 + 2996361 = 12579^2 + 1731^2 .

It is not an unprimeable number, because it can be changed into a prime (161227601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4478527 + ... + 4478562.

Almost surely, 2^161227602 is an apocalyptic number.

161227602 is an abundant number, since it is smaller than the sum of its proper divisors (188098908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161227602 is a wasteful number, since it uses less digits than its factorization.

161227602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8957097 (or 8957094 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 161227602 is about 12697.5431481842. The cubic root of 161227602 is about 544.2684143432.

Adding to 161227602 its reverse (206722161), we get a palindrome (367949763).

The spelling of 161227602 in words is "one hundred sixty-one million, two hundred twenty-seven thousand, six hundred two".