164595031 has 4 divisors (see below), whose sum is σ = 165067000. Its totient is φ = 164123064.

The previous prime is 164595029. The next prime is 164595049. The reversal of 164595031 is 130595461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130595461 = 1931 ⋅67631.

It is a cyclic number.

It is not a de Polignac number, because 164595031 - 2¹ = 164595029 is a prime.

It is a super-2 number, since 2×164595031² = 54183048459781922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164595001) 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, 235461 + ... + 236158.

It is an arithmetic number, because the mean of its divisors is an integer number (41266750).

Almost surely, 2^164595031 is an apocalyptic number.

164595031 is a deficient number, since it is larger than the sum of its proper divisors (471969).

164595031 is an equidigital number, since it uses as much as digits as its factorization.

164595031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471968.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 164595031 is about 12829.4594975782. The cubic root of 164595031 is about 548.0315650829.

The spelling of 164595031 in words is "one hundred sixty-four million, five hundred ninety-five thousand, thirty-one".