164361545 has 4 divisors (see below), whose sum is σ = 197233860. Its totient is φ = 131489232.

The previous prime is 164361499. The next prime is 164361557. The reversal of 164361545 is 545163461.

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 116985856 + 47375689 = 10816^2 + 6883^2 .

It is a cyclic number.

It is not a de Polignac number, because 164361545 - 2²⁴ = 147584329 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16436150 + ... + 16436159.

It is an arithmetic number, because the mean of its divisors is an integer number (49308465).

Almost surely, 2^164361545 is an apocalyptic number.

It is an amenable number.

164361545 is a deficient number, since it is larger than the sum of its proper divisors (32872315).

164361545 is an equidigital number, since it uses as much as digits as its factorization.

164361545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32872314.

The product of its digits is 43200, while the sum is 35.

The square root of 164361545 is about 12820.3566643054. The cubic root of 164361545 is about 547.7723060403.

The spelling of 164361545 in words is "one hundred sixty-four million, three hundred sixty-one thousand, five hundred forty-five".