164160137 has 4 divisors (see below), whose sum is σ = 166408980. Its totient is φ = 161911296.

The previous prime is 164160121. The next prime is 164160151. The reversal of 164160137 is 731061461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95667961 + 68492176 = 9781^2 + 8276^2 .

It is a cyclic number.

It is not a de Polignac number, because 164160137 - 2⁴ = 164160121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164160167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1124312 + ... + 1124457.

It is an arithmetic number, because the mean of its divisors is an integer number (41602245).

Almost surely, 2^164160137 is an apocalyptic number.

It is an amenable number.

164160137 is a deficient number, since it is larger than the sum of its proper divisors (2248843).

164160137 is an equidigital number, since it uses as much as digits as its factorization.

164160137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248842.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 164160137 is about 12812.4992487805. The cubic root of 164160137 is about 547.5484685655.

The spelling of 164160137 in words is "one hundred sixty-four million, one hundred sixty thousand, one hundred thirty-seven".