163741972 has 24 divisors (see below), whose sum is σ = 290736936. Its totient is φ = 80683008.

The previous prime is 163741961. The next prime is 163741973. The reversal of 163741972 is 279147361.

It can be written as a sum of positive squares in 4 ways, for example, as 4356 + 163737616 = 66^2 + 12796^2 .

It is a super-2 number, since 2×163741972² = 53622866788897568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163741973) 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, 86298 + ... + 88174.

It is an arithmetic number, because the mean of its divisors is an integer number (12114039).

Almost surely, 2^163741972 is an apocalyptic number.

It is an amenable number.

163741972 is a deficient number, since it is larger than the sum of its proper divisors (126994964).

163741972 is a wasteful number, since it uses less digits than its factorization.

163741972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187 (or 2185 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The square root of 163741972 is about 12796.1702083084. The cubic root of 163741972 is about 547.0831499651.

The spelling of 163741972 in words is "one hundred sixty-three million, seven hundred forty-one thousand, nine hundred seventy-two".