163541742 has 32 divisors (see below), whose sum is σ = 402565632. Its totient is φ = 43131744.

The previous prime is 163541737. The next prime is 163541779. The reversal of 163541742 is 247145361.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149218 + ... + 150309.

It is an arithmetic number, because the mean of its divisors is an integer number (12580176).

Almost surely, 2^163541742 is an apocalyptic number.

163541742 is an abundant number, since it is smaller than the sum of its proper divisors (239023890).

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

163541742 is a wasteful number, since it uses less digits than its factorization.

163541742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299552.

The product of its digits is 20160, while the sum is 33.

The square root of 163541742 is about 12788.3439897432. The cubic root of 163541742 is about 546.8600608795.

The spelling of 163541742 in words is "one hundred sixty-three million, five hundred forty-one thousand, seven hundred forty-two".