164025145 has 8 divisors (see below), whose sum is σ = 197368704. Its totient is φ = 130861104.

The previous prime is 164025139. The next prime is 164025187. The reversal of 164025145 is 541520461.

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

It is a cyclic number.

It is not a de Polignac number, because 164025145 - 2³ = 164025137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42859 + ... + 46528.

It is an arithmetic number, because the mean of its divisors is an integer number (24671088).

Almost surely, 2^164025145 is an apocalyptic number.

It is an amenable number.

164025145 is a deficient number, since it is larger than the sum of its proper divisors (33343559).

164025145 is an equidigital number, since it uses as much as digits as its factorization.

164025145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89759.

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

The square root of 164025145 is about 12807.2301845481. The cubic root of 164025145 is about 547.3983409037.

The spelling of 164025145 in words is "one hundred sixty-four million, twenty-five thousand, one hundred forty-five".