164440146 has 32 divisors (see below), whose sum is σ = 354691008. Its totient is φ = 50523840.

The previous prime is 164440109. The next prime is 164440183. The reversal of 164440146 is 641044461.

It is an interprime number because it is at equal distance from previous prime (164440109) and next prime (164440183).

It is a super-3 number, since 3×164440146³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81765 + ... + 83751.

It is an arithmetic number, because the mean of its divisors is an integer number (11084094).

Almost surely, 2^164440146 is an apocalyptic number.

164440146 is an abundant number, since it is smaller than the sum of its proper divisors (190250862).

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

164440146 is a wasteful number, since it uses less digits than its factorization.

164440146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 164440146 is about 12823.4217742380. The cubic root of 164440146 is about 547.8596107066.

The spelling of 164440146 in words is "one hundred sixty-four million, four hundred forty thousand, one hundred forty-six".