164193741 has 6 divisors (see below), whose sum is σ = 237168750. Its totient is φ = 109462488.

The previous prime is 164193727. The next prime is 164193749. The reversal of 164193741 is 147391461.

164193741 is a `hidden beast` number, since 1 + 641 + 9 + 3 + 7 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 128731716 + 35462025 = 11346^2 + 5955^2 .

It is not a de Polignac number, because 164193741 - 2¹⁴ = 164177357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164193696 and 164193705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164193749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9121866 + ... + 9121883.

It is an arithmetic number, because the mean of its divisors is an integer number (39528125).

Almost surely, 2^164193741 is an apocalyptic number.

It is an amenable number.

164193741 is a deficient number, since it is larger than the sum of its proper divisors (72975009).

164193741 is a wasteful number, since it uses less digits than its factorization.

164193741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18243755 (or 18243752 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 164193741 is about 12813.8105573635. The cubic root of 164193741 is about 547.5858275406.

The spelling of 164193741 in words is "one hundred sixty-four million, one hundred ninety-three thousand, seven hundred forty-one".