71232751 has 2 divisors, whose sum is σ = 71232752. Its totient is φ = 71232750.

The previous prime is 71232719. The next prime is 71232769. The reversal of 71232751 is 15723217.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71232751 - 2⁵ = 71232719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71232151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35616375 + 35616376.

It is an arithmetic number, because the mean of its divisors is an integer number (35616376).

Almost surely, 2^71232751 is an apocalyptic number.

71232751 is a deficient number, since it is larger than the sum of its proper divisors (1).

71232751 is an equidigital number, since it uses as much as digits as its factorization.

71232751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2940, while the sum is 28.

The square root of 71232751 is about 8439.9497036416. The cubic root of 71232751 is about 414.5337600302.

Adding to 71232751 its reverse (15723217), we get a palindrome (86955968).

The spelling of 71232751 in words is "seventy-one million, two hundred thirty-two thousand, seven hundred fifty-one".