164107442 has 4 divisors (see below), whose sum is σ = 246161166. Its totient is φ = 82053720.

The previous prime is 164107429. The next prime is 164107487. The reversal of 164107442 is 244701461.

It is a happy number.

164107442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 123899161 + 40208281 = 11131^2 + 6341^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41026859 + ... + 41026862.

Almost surely, 2^164107442 is an apocalyptic number.

164107442 is a deficient number, since it is larger than the sum of its proper divisors (82053724).

164107442 is an equidigital number, since it uses as much as digits as its factorization.

164107442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82053723.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 164107442 is about 12810.4426933654. The cubic root of 164107442 is about 547.4898750586.

The spelling of 164107442 in words is "one hundred sixty-four million, one hundred seven thousand, four hundred forty-two".