100603542 has 16 divisors (see below), whose sum is σ = 216684720. Its totient is φ = 30954912.

The previous prime is 100603519. The next prime is 100603543. The reversal of 100603542 is 245306001.

It is a happy number.

It is a super-4 number, since 4×100603542⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100603543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644817 + ... + 644972.

It is an arithmetic number, because the mean of its divisors is an integer number (13542795).

Almost surely, 2^100603542 is an apocalyptic number.

100603542 is an abundant number, since it is smaller than the sum of its proper divisors (116081178).

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

100603542 is a wasteful number, since it uses less digits than its factorization.

100603542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289807.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 100603542 is about 10030.1317040206. The cubic root of 100603542 is about 465.0908089501.

Adding to 100603542 its reverse (245306001), we get a palindrome (345909543).

The spelling of 100603542 in words is "one hundred million, six hundred three thousand, five hundred forty-two".