71137061 has 12 divisors (see below), whose sum is σ = 76185120. Its totient is φ = 66406080.

The previous prime is 71137057. The next prime is 71137063. The reversal of 71137061 is 16073117.

It is not a de Polignac number, because 71137061 - 2² = 71137057 is a prime.

It is a super-3 number, since 3×71137061³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71137061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71137063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36920 + ... + 38798.

It is an arithmetic number, because the mean of its divisors is an integer number (6348760).

Almost surely, 2^71137061 is an apocalyptic number.

It is an amenable number.

71137061 is a deficient number, since it is larger than the sum of its proper divisors (5048059).

71137061 is a wasteful number, since it uses less digits than its factorization.

71137061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044 (or 2027 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 26.

The square root of 71137061 is about 8434.2789259071. The cubic root of 71137061 is about 414.3480565431.

The spelling of 71137061 in words is "seventy-one million, one hundred thirty-seven thousand, sixty-one".