164450145 has 16 divisors (see below), whose sum is σ = 263304000. Its totient is φ = 87645504.

The previous prime is 164450087. The next prime is 164450147. The reversal of 164450145 is 541054461.

It is not a de Polignac number, because 164450145 - 2¹⁴ = 164433761 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (164450147) 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, 25731 + ... + 31479.

It is an arithmetic number, because the mean of its divisors is an integer number (16456500).

Almost surely, 2^164450145 is an apocalyptic number.

164450145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164450145 is a deficient number, since it is larger than the sum of its proper divisors (98853855).

164450145 is a wasteful number, since it uses less digits than its factorization.

164450145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7664.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 164450145 is about 12823.8116408500. The cubic root of 164450145 is about 547.8707149237.

The spelling of 164450145 in words is "one hundred sixty-four million, four hundred fifty thousand, one hundred forty-five".