42061156 has 18 divisors (see below), whose sum is σ = 75660018. Its totient is φ = 20459520.

The previous prime is 42061153. The next prime is 42061157. The reversal of 42061156 is 65116024.

It can be written as a sum of positive squares in 3 ways, for example, as 27878400 + 14182756 = 5280^2 + 3766^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42061156.

It is not an unprimeable number, because it can be changed into a prime (42061153) 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 5 ways as a sum of consecutive naturals, for example, 1636 + ... + 9316.

Almost surely, 2^42061156 is an apocalyptic number.

It is an amenable number.

42061156 is a deficient number, since it is larger than the sum of its proper divisors (33598862).

42061156 is a wasteful number, since it uses less digits than its factorization.

42061156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7759 (or 7720 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 42061156 is about 6485.4572699232. The cubic root of 42061156 is about 347.7712968617.

The spelling of 42061156 in words is "forty-two million, sixty-one thousand, one hundred fifty-six".