164250061 has 4 divisors (see below), whose sum is σ = 171391392. Its totient is φ = 157108732.

The previous prime is 164250043. The next prime is 164250077. The reversal of 164250061 is 160052461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164250061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164257061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3570631 + ... + 3570676.

It is an arithmetic number, because the mean of its divisors is an integer number (42847848).

Almost surely, 2^164250061 is an apocalyptic number.

It is an amenable number.

164250061 is a deficient number, since it is larger than the sum of its proper divisors (7141331).

164250061 is an equidigital number, since it uses as much as digits as its factorization.

164250061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7141330.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 164250061 is about 12816.0079978127. The cubic root of 164250061 is about 547.6484294159.

The spelling of 164250061 in words is "one hundred sixty-four million, two hundred fifty thousand, sixty-one".