164725742 has 16 divisors (see below), whose sum is σ = 259804800. Its totient is φ = 78217440.

The previous prime is 164725721. The next prime is 164725777. The reversal of 164725742 is 247527461.

It is a junction number, because it is equal to n+sod(n) for n = 164725696 and 164725705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19742 + ... + 26817.

It is an arithmetic number, because the mean of its divisors is an integer number (16237800).

Almost surely, 2^164725742 is an apocalyptic number.

164725742 is a deficient number, since it is larger than the sum of its proper divisors (95079058).

164725742 is a wasteful number, since it uses less digits than its factorization.

164725742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46651.

The product of its digits is 94080, while the sum is 38.

The square root of 164725742 is about 12834.5526606890. The cubic root of 164725742 is about 548.1765974076.

The spelling of 164725742 in words is "one hundred sixty-four million, seven hundred twenty-five thousand, seven hundred forty-two".