42102141 has 4 divisors (see below), whose sum is σ = 56136192. Its totient is φ = 28068092.

The previous prime is 42102133. The next prime is 42102143. The reversal of 42102141 is 14120124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42102141 - 2³ = 42102133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42102141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42102143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7017021 + ... + 7017026.

It is an arithmetic number, because the mean of its divisors is an integer number (14034048).

Almost surely, 2^42102141 is an apocalyptic number.

It is an amenable number.

42102141 is a deficient number, since it is larger than the sum of its proper divisors (14034051).

42102141 is a wasteful number, since it uses less digits than its factorization.

42102141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14034050.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 42102141 is about 6488.6162623475. The cubic root of 42102141 is about 347.8842179896.

Adding to 42102141 its reverse (14120124), we get a palindrome (56222265).

The spelling of 42102141 in words is "forty-two million, one hundred two thousand, one hundred forty-one".