80851455 has 12 divisors (see below), whose sum is σ = 140142600. Its totient is φ = 43120752.

The previous prime is 80851411. The next prime is 80851469. The reversal of 80851455 is 55415808.

It is not a de Polignac number, because 80851455 - 2⁹ = 80850943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 898305 + ... + 898394.

It is an arithmetic number, because the mean of its divisors is an integer number (11678550).

Almost surely, 2^80851455 is an apocalyptic number.

80851455 is a deficient number, since it is larger than the sum of its proper divisors (59291145).

80851455 is a wasteful number, since it uses less digits than its factorization.

80851455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796710 (or 1796707 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The square root of 80851455 is about 8991.7437129847. The cubic root of 80851455 is about 432.4102166978.

It can be divided in two parts, 8085 and 1455, that multiplied together give a triangular number (11763675 = T₄₈₅₀).

The spelling of 80851455 in words is "eighty million, eight hundred fifty-one thousand, four hundred fifty-five".