85371751 has 2 divisors, whose sum is σ = 85371752. Its totient is φ = 85371750.

The previous prime is 85371721. The next prime is 85371763. The reversal of 85371751 is 15717358.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85371751 - 2⁵ = 85371719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85371751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85371721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42685875 + 42685876.

It is an arithmetic number, because the mean of its divisors is an integer number (42685876).

Almost surely, 2^85371751 is an apocalyptic number.

85371751 is a deficient number, since it is larger than the sum of its proper divisors (1).

85371751 is an equidigital number, since it uses as much as digits as its factorization.

85371751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 37.

The square root of 85371751 is about 9239.6834902501. The cubic root of 85371751 is about 440.3230255342.

The spelling of 85371751 in words is "eighty-five million, three hundred seventy-one thousand, seven hundred fifty-one".