164658949 has 16 divisors (see below), whose sum is σ = 209198080. Its totient is φ = 126074880.

The previous prime is 164658943. The next prime is 164658953. The reversal of 164658949 is 949856461.

It is a happy number.

164658949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 164658949 - 2³ = 164658941 is a prime.

It is a super-2 number, since 2×164658949² = 54225138971569202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164658896 and 164658905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164658941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26364 + ... + 32005.

It is an arithmetic number, because the mean of its divisors is an integer number (13074880).

Almost surely, 2^164658949 is an apocalyptic number.

It is an amenable number.

164658949 is a deficient number, since it is larger than the sum of its proper divisors (44539131).

164658949 is a wasteful number, since it uses less digits than its factorization.

164658949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58420.

The product of its digits is 1866240, while the sum is 52.

The square root of 164658949 is about 12831.9503194175. The cubic root of 164658949 is about 548.1024958354.

The spelling of 164658949 in words is "one hundred sixty-four million, six hundred fifty-eight thousand, nine hundred forty-nine".