42054361 has 2 divisors, whose sum is σ = 42054362. Its totient is φ = 42054360.

The previous prime is 42054349. The next prime is 42054407. The reversal of 42054361 is 16345024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37748736 + 4305625 = 6144^2 + 2075^2 .

It is a cyclic number.

It is not a de Polignac number, because 42054361 - 2⁵ = 42054329 is a prime.

It is not a weakly prime, because it can be changed into another prime (42054461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21027180 + 21027181.

It is an arithmetic number, because the mean of its divisors is an integer number (21027181).

Almost surely, 2^42054361 is an apocalyptic number.

It is an amenable number.

42054361 is a deficient number, since it is larger than the sum of its proper divisors (1).

42054361 is an equidigital number, since it uses as much as digits as its factorization.

42054361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 42054361 is about 6484.9333843919. The cubic root of 42054361 is about 347.7525683130.

Adding to 42054361 its reverse (16345024), we get a palindrome (58399385).

The spelling of 42054361 in words is "forty-two million, fifty-four thousand, three hundred sixty-one".