164616243 has 16 divisors (see below), whose sum is σ = 241056000. Its totient is φ = 99094880.

The previous prime is 164616229. The next prime is 164616281. The reversal of 164616243 is 342616461.

It is a cyclic number.

It is not a de Polignac number, because 164616243 - 2⁸ = 164615987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 in 15 ways as a sum of consecutive naturals, for example, 11823 + ... + 21656.

It is an arithmetic number, because the mean of its divisors is an integer number (15066000).

Almost surely, 2^164616243 is an apocalyptic number.

164616243 is a deficient number, since it is larger than the sum of its proper divisors (76439757).

164616243 is a wasteful number, since it uses less digits than its factorization.

164616243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33642.

The product of its digits is 20736, while the sum is 33.

The square root of 164616243 is about 12830.2861620464. The cubic root of 164616243 is about 548.0551063894.

It can be divided in two parts, 1646162 and 43, that added together give a triangular number (1646205 = T₁₈₁₄).

The spelling of 164616243 in words is "one hundred sixty-four million, six hundred sixteen thousand, two hundred forty-three".