165354212 has 6 divisors (see below), whose sum is σ = 289369878. Its totient is φ = 82677104.

The previous prime is 165354193. The next prime is 165354247. The reversal of 165354212 is 212453561.

It can be written as a sum of positive squares in only one way, i.e., 151634596 + 13719616 = 12314^2 + 3704^2 .

It is a super-2 number, since 2×165354212² = 54684030852281888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20669273 + ... + 20669280.

It is an arithmetic number, because the mean of its divisors is an integer number (48228313).

Almost surely, 2^165354212 is an apocalyptic number.

It is an amenable number.

165354212 is a deficient number, since it is larger than the sum of its proper divisors (124015666).

165354212 is a wasteful number, since it uses less digits than its factorization.

165354212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41338557 (or 41338555 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 165354212 is about 12859.0128703567. The cubic root of 165354212 is about 548.8728564023.

The spelling of 165354212 in words is "one hundred sixty-five million, three hundred fifty-four thousand, two hundred twelve".