164780331 has 8 divisors (see below), whose sum is σ = 231270720. Its totient is φ = 104071752.

The previous prime is 164780309. The next prime is 164780359. The reversal of 164780331 is 133087461.

164780331 is digitally balanced in base 2, because in such base 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 not a de Polignac number, because 164780331 - 2⁶ = 164780267 is a prime.

It is a super-2 number, since 2×164780331² = 54305114968939122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164780292 and 164780301.

It is not an unprimeable number, because it can be changed into a prime (164780831) 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, 1445385 + ... + 1445498.

It is an arithmetic number, because the mean of its divisors is an integer number (28908840).

Almost surely, 2^164780331 is an apocalyptic number.

164780331 is a deficient number, since it is larger than the sum of its proper divisors (66490389).

164780331 is a wasteful number, since it uses less digits than its factorization.

164780331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890905.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 164780331 is about 12836.6791266277. The cubic root of 164780331 is about 548.2371447289.

The spelling of 164780331 in words is "one hundred sixty-four million, seven hundred eighty thousand, three hundred thirty-one".