164612642 has 8 divisors (see below), whose sum is σ = 255433500. Its totient is φ = 79468144.

The previous prime is 164612641. The next prime is 164612653. The reversal of 164612642 is 246216461.

164612642 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 145419481 + 19193161 = 12059^2 + 4381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 164612599 and 164612608.

It is not an unprimeable number, because it can be changed into a prime (164612641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1419017 + ... + 1419132.

Almost surely, 2^164612642 is an apocalyptic number.

164612642 is a deficient number, since it is larger than the sum of its proper divisors (90820858).

164612642 is a wasteful number, since it uses less digits than its factorization.

164612642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838180.

The product of its digits is 13824, while the sum is 32.

The square root of 164612642 is about 12830.1458292570. The cubic root of 164612642 is about 548.0511101033.

The spelling of 164612642 in words is "one hundred sixty-four million, six hundred twelve thousand, six hundred forty-two".