162646213 has 4 divisors (see below), whose sum is σ = 171206560. Its totient is φ = 154085868.

The previous prime is 162646189. The next prime is 162646223. The reversal of 162646213 is 312646261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312646261 = 12907 ⋅24223.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162646213 is a prime.

It is a super-3 number, since 3×162646213³ (a number of 26 digits) contains 333 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 (162646223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4280145 + ... + 4280182.

It is an arithmetic number, because the mean of its divisors is an integer number (42801640).

Almost surely, 2^162646213 is an apocalyptic number.

It is an amenable number.

162646213 is a deficient number, since it is larger than the sum of its proper divisors (8560347).

162646213 is an equidigital number, since it uses as much as digits as its factorization.

162646213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8560346.

The product of its digits is 10368, while the sum is 31.

The square root of 162646213 is about 12753.2824402191. The cubic root of 162646213 is about 545.8600599827.

The spelling of 162646213 in words is "one hundred sixty-two million, six hundred forty-six thousand, two hundred thirteen".