168502542 has 64 divisors (see below), whose sum is σ = 372810816. Its totient is φ = 50457600.

The previous prime is 168502489. The next prime is 168502547. The reversal of 168502542 is 245205861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168502547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 574948 + ... + 575240.

It is an arithmetic number, because the mean of its divisors is an integer number (5825169).

Almost surely, 2^168502542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168502542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186405408).

168502542 is an abundant number, since it is smaller than the sum of its proper divisors (204308274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168502542 is a wasteful number, since it uses less digits than its factorization.

168502542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 168502542 is about 12980.8528995594. The cubic root of 168502542 is about 552.3344761897.

The spelling of 168502542 in words is "one hundred sixty-eight million, five hundred two thousand, five hundred forty-two".