42357541 has 4 divisors (see below), whose sum is σ = 42422284. Its totient is φ = 42292800.

The previous prime is 42357533. The next prime is 42357587. The reversal of 42357541 is 14575324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24295041 + 18062500 = 4929^2 + 4250^2 .

It is a cyclic number.

It is not a de Polignac number, because 42357541 - 2³ = 42357533 is a prime.

It is a super-2 number, since 2×42357541² = 3588322559133362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42357521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31380 + ... + 32701.

It is an arithmetic number, because the mean of its divisors is an integer number (10605571).

Almost surely, 2^42357541 is an apocalyptic number.

It is an amenable number.

42357541 is a deficient number, since it is larger than the sum of its proper divisors (64743).

42357541 is an equidigital number, since it uses as much as digits as its factorization.

42357541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64742.

The product of its digits is 16800, while the sum is 31.

The square root of 42357541 is about 6508.2671272774. The cubic root of 42357541 is about 348.5862454110.

The spelling of 42357541 in words is "forty-two million, three hundred fifty-seven thousand, five hundred forty-one".