164021154 has 16 divisors (see below), whose sum is σ = 357864480. Its totient is φ = 49703360.

The previous prime is 164021153. The next prime is 164021171. The reversal of 164021154 is 451120461.

It is a happy number.

164021154 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (164021153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1242519 + ... + 1242650.

It is an arithmetic number, because the mean of its divisors is an integer number (22366530).

Almost surely, 2^164021154 is an apocalyptic number.

164021154 is an abundant number, since it is smaller than the sum of its proper divisors (193843326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164021154 is a wasteful number, since it uses less digits than its factorization.

164021154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485185.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 164021154 is about 12807.0743731736. The cubic root of 164021154 is about 547.3939011687.

The spelling of 164021154 in words is "one hundred sixty-four million, twenty-one thousand, one hundred fifty-four".