168140975 has 24 divisors (see below), whose sum is σ = 220224000. Its totient is φ = 126995040.

The previous prime is 168140969. The next prime is 168141007. The reversal of 168140975 is 579041861.

It is not a de Polignac number, because 168140975 - 2¹² = 168136879 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227156 + ... + 227894.

It is an arithmetic number, because the mean of its divisors is an integer number (9176000).

Almost surely, 2^168140975 is an apocalyptic number.

168140975 is a deficient number, since it is larger than the sum of its proper divisors (52083025).

168140975 is a wasteful number, since it uses less digits than its factorization.

168140975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247 (or 1242 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 168140975 is about 12966.9184851298. The cubic root of 168140975 is about 551.9391331315.

The spelling of 168140975 in words is "one hundred sixty-eight million, one hundred forty thousand, nine hundred seventy-five".