164426091 has 16 divisors (see below), whose sum is σ = 233912448. Its totient is φ = 102377600.

The previous prime is 164426083. The next prime is 164426117. The reversal of 164426091 is 190624461.

It is a cyclic number.

It is not a de Polignac number, because 164426091 - 2³ = 164426083 is a prime.

It is a super-3 number, since 3×164426091³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (164436091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5625 + ... + 18986.

It is an arithmetic number, because the mean of its divisors is an integer number (14619528).

Almost surely, 2^164426091 is an apocalyptic number.

164426091 is a deficient number, since it is larger than the sum of its proper divisors (69486357).

164426091 is a wasteful number, since it uses less digits than its factorization.

164426091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24762.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 164426091 is about 12822.8737418724. The cubic root of 164426091 is about 547.8440014076.

The spelling of 164426091 in words is "one hundred sixty-four million, four hundred twenty-six thousand, ninety-one".