42101125 has 32 divisors (see below), whose sum is σ = 58301568. Its totient is φ = 30096000.

The previous prime is 42101119. The next prime is 42101149. The reversal of 42101125 is 52110124.

It is not a de Polignac number, because 42101125 - 2³ = 42101117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42101099 and 42101108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91897 + ... + 92353.

It is an arithmetic number, because the mean of its divisors is an integer number (1821924).

Almost surely, 2^42101125 is an apocalyptic number.

It is an amenable number.

42101125 is a deficient number, since it is larger than the sum of its proper divisors (16200443).

42101125 is a wasteful number, since it uses less digits than its factorization.

42101125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 42101125 is about 6488.5379709146. The cubic root of 42101125 is about 347.8814196109.

Adding to 42101125 its reverse (52110124), we get a palindrome (94211249).

It can be divided in two parts, 42101 and 125, that multiplied together give a palindrome (5262625).

The spelling of 42101125 in words is "forty-two million, one hundred one thousand, one hundred twenty-five".