164616146 has 4 divisors (see below), whose sum is σ = 246924222. Its totient is φ = 82308072.

The previous prime is 164616143. The next prime is 164616161. The reversal of 164616146 is 641616461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 641616461 = 3407 ⋅188323.

It can be written as a sum of positive squares in only one way, i.e., 83814025 + 80802121 = 9155^2 + 8989^2 .

It is not an unprimeable number, because it can be changed into a prime (164616143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41154035 + ... + 41154038.

Almost surely, 2^164616146 is an apocalyptic number.

164616146 is a deficient number, since it is larger than the sum of its proper divisors (82308076).

164616146 is an equidigital number, since it uses as much as digits as its factorization.

164616146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82308075.

The product of its digits is 20736, while the sum is 35.

The square root of 164616146 is about 12830.2823819275. The cubic root of 164616146 is about 548.0549987423.

The spelling of 164616146 in words is "one hundred sixty-four million, six hundred sixteen thousand, one hundred forty-six".