164465949 has 4 divisors (see below), whose sum is σ = 219287936. Its totient is φ = 109643964.

The previous prime is 164465941. The next prime is 164465953. The reversal of 164465949 is 949564461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 164465949 - 2³ = 164465941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164465898 and 164465907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164465941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27410989 + ... + 27410994.

It is an arithmetic number, because the mean of its divisors is an integer number (54821984).

Almost surely, 2^164465949 is an apocalyptic number.

It is an amenable number.

164465949 is a deficient number, since it is larger than the sum of its proper divisors (54821987).

164465949 is an equidigital number, since it uses as much as digits as its factorization.

164465949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54821986.

The product of its digits is 933120, while the sum is 48.

The square root of 164465949 is about 12824.4278234937. The cubic root of 164465949 is about 547.8882648655. Note that the first 3 decimals are identical.

The spelling of 164465949 in words is "one hundred sixty-four million, four hundred sixty-five thousand, nine hundred forty-nine".