164252642 has 8 divisors (see below), whose sum is σ = 252388332. Its totient is φ = 80123200.

The previous prime is 164252633. The next prime is 164252653. The reversal of 164252642 is 246252461.

164252642 is digitally balanced in base 2, because in such base 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 148815601 + 15437041 = 12199^2 + 3929^2 .

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 = 164252599 and 164252608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001459 + ... + 1001622.

Almost surely, 2^164252642 is an apocalyptic number.

164252642 is a deficient number, since it is larger than the sum of its proper divisors (88135690).

164252642 is a wasteful number, since it uses less digits than its factorization.

164252642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003124.

The product of its digits is 23040, while the sum is 32.

The square root of 164252642 is about 12816.1086917988. The cubic root of 164252642 is about 547.6512979551.

The spelling of 164252642 in words is "one hundred sixty-four million, two hundred fifty-two thousand, six hundred forty-two".