164154745 has 4 divisors (see below), whose sum is σ = 196985700. Its totient is φ = 131323792.

The previous prime is 164154743. The next prime is 164154751. The reversal of 164154745 is 547451461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20466576 + 143688169 = 4524^2 + 11987^2 .

It is a cyclic number.

It is not a de Polignac number, because 164154745 - 2¹ = 164154743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164154743) 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, 16415470 + ... + 16415479.

It is an arithmetic number, because the mean of its divisors is an integer number (49246425).

Almost surely, 2^164154745 is an apocalyptic number.

It is an amenable number.

164154745 is a deficient number, since it is larger than the sum of its proper divisors (32830955).

164154745 is an equidigital number, since it uses as much as digits as its factorization.

164154745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32830954.

The product of its digits is 67200, while the sum is 37.

The square root of 164154745 is about 12812.2888275280. The cubic root of 164154745 is about 547.5424735785.

The spelling of 164154745 in words is "one hundred sixty-four million, one hundred fifty-four thousand, seven hundred forty-five".