164541031 has 4 divisors (see below), whose sum is σ = 168041952. Its totient is φ = 161040112.

The previous prime is 164541023. The next prime is 164541037. The reversal of 164541031 is 130145461.

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

It is a cyclic number.

It is not a de Polignac number, because 164541031 - 2³ = 164541023 is a prime.

It is a super-2 number, since 2×164541031² = 54147501765085922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164540987 and 164541005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164541037) 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, 1750390 + ... + 1750483.

It is an arithmetic number, because the mean of its divisors is an integer number (42010488).

Almost surely, 2^164541031 is an apocalyptic number.

164541031 is a deficient number, since it is larger than the sum of its proper divisors (3500921).

164541031 is an equidigital number, since it uses as much as digits as its factorization.

164541031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500920.

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

The square root of 164541031 is about 12827.3547935652. The cubic root of 164541031 is about 547.9716261705.

Adding to 164541031 its reverse (130145461), we get a palindrome (294686492).

The spelling of 164541031 in words is "one hundred sixty-four million, five hundred forty-one thousand, thirty-one".