164061331 has 8 divisors (see below), whose sum is σ = 193547264. Its totient is φ = 136087560.

The previous prime is 164061329. The next prime is 164061353. The reversal of 164061331 is 133160461.

It is a happy number.

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

It is not a de Polignac number, because 164061331 - 2¹ = 164061329 is a prime.

It is a super-2 number, since 2×164061331² = 53832240658983122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164061296 and 164061305.

It is not an unprimeable number, because it can be changed into a prime (164061361) 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 7 ways as a sum of consecutive naturals, for example, 377805 + ... + 378238.

It is an arithmetic number, because the mean of its divisors is an integer number (24193408).

Almost surely, 2^164061331 is an apocalyptic number.

164061331 is a deficient number, since it is larger than the sum of its proper divisors (29485933).

164061331 is an equidigital number, since it uses as much as digits as its factorization.

164061331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756081.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 164061331 is about 12808.6428242808. The cubic root of 164061331 is about 547.4385922523.

The spelling of 164061331 in words is "one hundred sixty-four million, sixty-one thousand, three hundred thirty-one".