81254095 has 16 divisors (see below), whose sum is σ = 106277472. Its totient is φ = 59276160.

The previous prime is 81254093. The next prime is 81254123. The reversal of 81254095 is 59045218.

It is not a de Polignac number, because 81254095 - 2¹ = 81254093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 81254095.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81254093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2136 + ... + 12925.

It is an arithmetic number, because the mean of its divisors is an integer number (6642342).

Almost surely, 2^81254095 is an apocalyptic number.

81254095 is a deficient number, since it is larger than the sum of its proper divisors (25023377).

81254095 is a wasteful number, since it uses less digits than its factorization.

81254095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15162.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 81254095 is about 9014.1053355283. The cubic root of 81254095 is about 433.1268289567.

The spelling of 81254095 in words is "eighty-one million, two hundred fifty-four thousand, ninety-five".