164743450 has 24 divisors (see below), whose sum is σ = 309874140. Its totient is φ = 65155200.

The previous prime is 164743427. The next prime is 164743483. The reversal of 164743450 is 54347461.

It can be written as a sum of positive squares in 6 ways, for example, as 9018009 + 155725441 = 3003^2 + 12479^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 14061 + ... + 22960.

Almost surely, 2^164743450 is an apocalyptic number.

164743450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164743450 is a deficient number, since it is larger than the sum of its proper divisors (145130690).

164743450 is a wasteful number, since it uses less digits than its factorization.

164743450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37122 (or 37117 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 164743450 is about 12835.2424986831. The cubic root of 164743450 is about 548.1962396793.

The spelling of 164743450 in words is "one hundred sixty-four million, seven hundred forty-three thousand, four hundred fifty".