164280145 has 16 divisors (see below), whose sum is σ = 206623872. Its totient is φ = 125150080.

The previous prime is 164280139. The next prime is 164280161. The reversal of 164280145 is 541082461.

It is not a de Polignac number, because 164280145 - 2²³ = 155891537 is a prime.

It is a Duffinian number.

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, 23730 + ... + 29860.

It is an arithmetic number, because the mean of its divisors is an integer number (12913992).

Almost surely, 2^164280145 is an apocalyptic number.

It is an amenable number.

164280145 is a deficient number, since it is larger than the sum of its proper divisors (42343727).

164280145 is a wasteful number, since it uses less digits than its factorization.

164280145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6392.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 164280145 is about 12817.1816324807. The cubic root of 164280145 is about 547.6818630911.

The spelling of 164280145 in words is "one hundred sixty-four million, two hundred eighty thousand, one hundred forty-five".