168028156 has 24 divisors (see below), whose sum is σ = 307528704. Its totient is φ = 80179440.

The previous prime is 168028129. The next prime is 168028193. The reversal of 168028156 is 651820861.

It is a super-2 number, since 2×168028156² = 56466922417520672, which contains 22 as substring.

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, 44461 + ... + 48091.

It is an arithmetic number, because the mean of its divisors is an integer number (12813696).

Almost surely, 2^168028156 is an apocalyptic number.

It is an amenable number.

168028156 is a deficient number, since it is larger than the sum of its proper divisors (139500548).

168028156 is a wasteful number, since it uses less digits than its factorization.

168028156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4161 (or 4159 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 168028156 is about 12962.5674925919. The cubic root of 168028156 is about 551.8156590579.

The spelling of 168028156 in words is "one hundred sixty-eight million, twenty-eight thousand, one hundred fifty-six".