42315101 has 4 divisors (see below), whose sum is σ = 44154912. Its totient is φ = 40475292.

The previous prime is 42315083. The next prime is 42315103. The reversal of 42315101 is 10151324.

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 a de Polignac number, because none of the positive numbers 2^k-42315101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42315101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42315103) 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, 919871 + ... + 919916.

It is an arithmetic number, because the mean of its divisors is an integer number (11038728).

Almost surely, 2^42315101 is an apocalyptic number.

It is an amenable number.

42315101 is a deficient number, since it is larger than the sum of its proper divisors (1839811).

42315101 is a wasteful number, since it uses less digits than its factorization.

42315101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839810.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 42315101 is about 6505.0058416576. The cubic root of 42315101 is about 348.4697848895.

Adding to 42315101 its reverse (10151324), we get a palindrome (52466425).

The spelling of 42315101 in words is "forty-two million, three hundred fifteen thousand, one hundred one".