164252641 has 8 divisors (see below), whose sum is σ = 187955264. Its totient is φ = 140609520.

The previous prime is 164252633. The next prime is 164252653. The reversal of 164252641 is 146252461.

It is a happy number.

164252641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 164252641 - 2³ = 164252633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164252611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8790 + ... + 20143.

It is an arithmetic number, because the mean of its divisors is an integer number (23494408).

Almost surely, 2^164252641 is an apocalyptic number.

It is an amenable number.

164252641 is a deficient number, since it is larger than the sum of its proper divisors (23702623).

164252641 is an equidigital number, since it uses as much as digits as its factorization.

164252641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29751.

The product of its digits is 11520, while the sum is 31.

The square root of 164252641 is about 12816.1086527854. The cubic root of 164252641 is about 547.6512968437.

The spelling of 164252641 in words is "one hundred sixty-four million, two hundred fifty-two thousand, six hundred forty-one".