71600261 has 2 divisors, whose sum is σ = 71600262. Its totient is φ = 71600260.

The previous prime is 71600237. The next prime is 71600273. The reversal of 71600261 is 16200617.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58997761 + 12602500 = 7681^2 + 3550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71600261 is a prime.

It is a super-3 number, since 3×71600261³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71602261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35800130 + 35800131.

It is an arithmetic number, because the mean of its divisors is an integer number (35800131).

Almost surely, 2^71600261 is an apocalyptic number.

It is an amenable number.

71600261 is a deficient number, since it is larger than the sum of its proper divisors (1).

71600261 is an equidigital number, since it uses as much as digits as its factorization.

71600261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 71600261 is about 8461.6937429808. The cubic root of 71600261 is about 415.2454366622.

Adding to 71600261 its reverse (16200617), we get a palindrome (87800878).

The spelling of 71600261 in words is "seventy-one million, six hundred thousand, two hundred sixty-one".