168460138 has 72 divisors (see below), whose sum is σ = 335740032. Its totient is φ = 62622000.

The previous prime is 168460093. The next prime is 168460151. The reversal of 168460138 is 831064861.

It is a junction number, because it is equal to n+sod(n) for n = 168460097 and 168460106.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2372643 + ... + 2372713.

It is an arithmetic number, because the mean of its divisors is an integer number (4663056).

Almost surely, 2^168460138 is an apocalyptic number.

168460138 is a deficient number, since it is larger than the sum of its proper divisors (167279894).

168460138 is a wasteful number, since it uses less digits than its factorization.

168460138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 168460138 is about 12979.2194680574. The cubic root of 168460138 is about 552.2881402793.

The spelling of 168460138 in words is "one hundred sixty-eight million, four hundred sixty thousand, one hundred thirty-eight".