164145699 has 6 divisors (see below), whose sum is σ = 237099356. Its totient is φ = 109430460.

The previous prime is 164145691. The next prime is 164145703. The reversal of 164145699 is 996541461.

It is a happy number.

It is not a de Polignac number, because 164145699 - 2³ = 164145691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164145691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9119197 + ... + 9119214.

Almost surely, 2^164145699 is an apocalyptic number.

164145699 is a deficient number, since it is larger than the sum of its proper divisors (72953657).

164145699 is a wasteful number, since it uses less digits than its factorization.

164145699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18238417 (or 18238414 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 164145699 is about 12811.9358022119. The cubic root of 164145699 is about 547.5324156700.

The spelling of 164145699 in words is "one hundred sixty-four million, one hundred forty-five thousand, six hundred ninety-nine".