42071156 has 6 divisors (see below), whose sum is σ = 73624530. Its totient is φ = 21035576.

The previous prime is 42071153. The next prime is 42071171. The reversal of 42071156 is 65117024.

It can be written as a sum of positive squares in only one way, i.e., 42042256 + 28900 = 6484^2 + 170^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42071153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5258891 + ... + 5258898.

It is an arithmetic number, because the mean of its divisors is an integer number (12270755).

Almost surely, 2^42071156 is an apocalyptic number.

It is an amenable number.

42071156 is a deficient number, since it is larger than the sum of its proper divisors (31553374).

42071156 is a wasteful number, since it uses less digits than its factorization.

42071156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10517793 (or 10517791 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 42071156 is about 6486.2281797667. The cubic root of 42071156 is about 347.7988554433.

The spelling of 42071156 in words is "forty-two million, seventy-one thousand, one hundred fifty-six".