164546431 has 8 divisors (see below), whose sum is σ = 188326944. Its totient is φ = 140834400.

The previous prime is 164546429. The next prime is 164546449. The reversal of 164546431 is 134645461.

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

It is not a de Polignac number, because 164546431 - 2¹ = 164546429 is a prime.

It is a super-2 number, since 2×164546431² = 54151055909675522, 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 (164546411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11860 + ... + 21673.

It is an arithmetic number, because the mean of its divisors is an integer number (23540868).

Almost surely, 2^164546431 is an apocalyptic number.

164546431 is a deficient number, since it is larger than the sum of its proper divisors (23780513).

164546431 is an equidigital number, since it uses as much as digits as its factorization.

164546431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34241.

The product of its digits is 34560, while the sum is 34.

The square root of 164546431 is about 12827.5652795065. The cubic root of 164546431 is about 547.9776206518.

The spelling of 164546431 in words is "one hundred sixty-four million, five hundred forty-six thousand, four hundred thirty-one".