71750131 has 2 divisors, whose sum is σ = 71750132. Its totient is φ = 71750130.

The previous prime is 71750111. The next prime is 71750171. The reversal of 71750131 is 13105717.

It is a weak prime.

It is an emirp because it is prime and its reverse (13105717) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71750131 - 2⁹ = 71749619 is a prime.

It is a super-2 number, since 2×71750131² = 10296162597034322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71750096 and 71750105.

It is not a weakly prime, because it can be changed into another prime (71750111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35875065 + 35875066.

It is an arithmetic number, because the mean of its divisors is an integer number (35875066).

Almost surely, 2^71750131 is an apocalyptic number.

71750131 is a deficient number, since it is larger than the sum of its proper divisors (1).

71750131 is an equidigital number, since it uses as much as digits as its factorization.

71750131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 735, while the sum is 25.

The square root of 71750131 is about 8470.5449057307. The cubic root of 71750131 is about 415.5349582473.

Adding to 71750131 its reverse (13105717), we get a palindrome (84855848).

The spelling of 71750131 in words is "seventy-one million, seven hundred fifty thousand, one hundred thirty-one".