85251743 has 2 divisors, whose sum is σ = 85251744. Its totient is φ = 85251742.

The previous prime is 85251739. The next prime is 85251763. The reversal of 85251743 is 34715258.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85251743 - 2² = 85251739 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85251763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42625871 + 42625872.

It is an arithmetic number, because the mean of its divisors is an integer number (42625872).

Almost surely, 2^85251743 is an apocalyptic number.

85251743 is a deficient number, since it is larger than the sum of its proper divisors (1).

85251743 is an equidigital number, since it uses as much as digits as its factorization.

85251743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33600, while the sum is 35.

The square root of 85251743 is about 9233.1870445692. The cubic root of 85251743 is about 440.1166064915.

The spelling of 85251743 in words is "eighty-five million, two hundred fifty-one thousand, seven hundred forty-three".