164042554 has 24 divisors (see below), whose sum is σ = 282131100. Its totient is φ = 71255808.

The previous prime is 164042513. The next prime is 164042563. The reversal of 164042554 is 455240461.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 21836929 + 142205625 = 4673^2 + 11925^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8529 + ... + 20020.

Almost surely, 2^164042554 is an apocalyptic number.

164042554 is a deficient number, since it is larger than the sum of its proper divisors (118088546).

164042554 is a wasteful number, since it uses less digits than its factorization.

164042554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28594 (or 28581 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 164042554 is about 12807.9098216688. The cubic root of 164042554 is about 547.4177064723.

The spelling of 164042554 in words is "one hundred sixty-four million, forty-two thousand, five hundred fifty-four".