164215253 has 8 divisors (see below), whose sum is σ = 167575608. Its totient is φ = 160864704.

The previous prime is 164215243. The next prime is 164215267. The reversal of 164215253 is 352512461.

It can be written as a sum of positive squares in 4 ways, for example, as 41049649 + 123165604 = 6407^2 + 11098^2 .

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 164215253 - 2⁸ = 164214997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164215243) 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, 38075 + ... + 42167.

It is an arithmetic number, because the mean of its divisors is an integer number (20946951).

Almost surely, 2^164215253 is an apocalyptic number.

It is an amenable number.

164215253 is a deficient number, since it is larger than the sum of its proper divisors (3360355).

164215253 is an equidigital number, since it uses as much as digits as its factorization.

164215253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4903.

The product of its digits is 7200, while the sum is 29.

The square root of 164215253 is about 12814.6499366935. The cubic root of 164215253 is about 547.6097406565.

The spelling of 164215253 in words is "one hundred sixty-four million, two hundred fifteen thousand, two hundred fifty-three".