164521054 has 8 divisors (see below), whose sum is σ = 246952440. Its totient is φ = 82203576.

The previous prime is 164521051. The next prime is 164521073. The reversal of 164521054 is 450125461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164521051) 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, 24769 + ... + 30700.

It is an arithmetic number, because the mean of its divisors is an integer number (30869055).

Almost surely, 2^164521054 is an apocalyptic number.

164521054 is a deficient number, since it is larger than the sum of its proper divisors (82431386).

164521054 is a wasteful number, since it uses less digits than its factorization.

164521054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56954.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 164521054 is about 12826.5760824937. The cubic root of 164521054 is about 547.9494487797.

The spelling of 164521054 in words is "one hundred sixty-four million, five hundred twenty-one thousand, fifty-four".