164123031 has 8 divisors (see below), whose sum is σ = 221289840. Its totient is φ = 108185792.

The previous prime is 164123023. The next prime is 164123051. The reversal of 164123031 is 130321461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164123031 - 2³ = 164123023 is a prime.

It is a super-2 number, since 2×164123031² = 53872738609253922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164122989 and 164123007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164123051) 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 7 ways as a sum of consecutive naturals, for example, 307080 + ... + 307613.

It is an arithmetic number, because the mean of its divisors is an integer number (27661230).

Almost surely, 2^164123031 is an apocalyptic number.

164123031 is a deficient number, since it is larger than the sum of its proper divisors (57166809).

164123031 is an equidigital number, since it uses as much as digits as its factorization.

164123031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614785.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 164123031 is about 12811.0511278349. The cubic root of 164123031 is about 547.5072103469.

Adding to 164123031 its reverse (130321461), we get a palindrome (294444492).

The spelling of 164123031 in words is "one hundred sixty-four million, one hundred twenty-three thousand, thirty-one".