164137790 has 8 divisors (see below), whose sum is σ = 295448040. Its totient is φ = 65655112.

The previous prime is 164137783. The next prime is 164137793. The reversal of 164137790 is 97731461.

164137790 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 is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164137793) 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, 8206880 + ... + 8206899.

It is an arithmetic number, because the mean of its divisors is an integer number (36931005).

Almost surely, 2^164137790 is an apocalyptic number.

164137790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164137790 is a deficient number, since it is larger than the sum of its proper divisors (131310250).

164137790 is a wasteful number, since it uses less digits than its factorization.

164137790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16413786.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 164137790 is about 12811.6271409997. The cubic root of 164137790 is about 547.5236216465.

The spelling of 164137790 in words is "one hundred sixty-four million, one hundred thirty-seven thousand, seven hundred ninety".