164545461 has 12 divisors (see below), whose sum is σ = 237800992. Its totient is φ = 109639656.

The previous prime is 164545441. The next prime is 164545483.

164545461 is a `hidden beast` number, since 1 + 64 + 54 + 546 + 1 = 666.

164545461 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 164545461 - 2¹⁷ = 164414389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164545421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20370 + ... + 27276.

Almost surely, 2^164545461 is an apocalyptic number.

It is an amenable number.

164545461 is a deficient number, since it is larger than the sum of its proper divisors (73255531).

164545461 is a wasteful number, since it uses less digits than its factorization.

164545461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9560 (or 9557 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 164545461 is about 12827.5274702493. The cubic root of 164545461 is about 547.9765438750.

The spelling of 164545461 in words is "one hundred sixty-four million, five hundred forty-five thousand, four hundred sixty-one".