164838136 has 8 divisors (see below), whose sum is σ = 309071520. Its totient is φ = 82419064.

The previous prime is 164838133. The next prime is 164838169. The reversal of 164838136 is 631838461.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×164838136² = 54343222159908992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164838133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10302376 + ... + 10302391.

It is an arithmetic number, because the mean of its divisors is an integer number (38633940).

Almost surely, 2^164838136 is an apocalyptic number.

It is an amenable number.

164838136 is a deficient number, since it is larger than the sum of its proper divisors (144233384).

164838136 is a wasteful number, since it uses less digits than its factorization.

164838136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20604773 (or 20604769 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 164838136 is about 12838.9304850521. The cubic root of 164838136 is about 548.3012444973.

The spelling of 164838136 in words is "one hundred sixty-four million, eight hundred thirty-eight thousand, one hundred thirty-six".