42531351 has 4 divisors (see below), whose sum is σ = 56708472. Its totient is φ = 28354232.

The previous prime is 42531341. The next prime is 42531361. The reversal of 42531351 is 15313524.

42531351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (42531341) and next prime (42531361).

It is a cyclic number.

It is not a de Polignac number, because 42531351 - 2⁵ = 42531319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42531311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7088556 + ... + 7088561.

It is an arithmetic number, because the mean of its divisors is an integer number (14177118).

Almost surely, 2^42531351 is an apocalyptic number.

42531351 is a deficient number, since it is larger than the sum of its proper divisors (14177121).

42531351 is a wasteful number, since it uses less digits than its factorization.

42531351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14177120.

The product of its digits is 1800, while the sum is 24.

The square root of 42531351 is about 6521.6064738682. The cubic root of 42531351 is about 349.0623911794.

Adding to 42531351 its reverse (15313524), we get a palindrome (57844875).

The spelling of 42531351 in words is "forty-two million, five hundred thirty-one thousand, three hundred fifty-one".