82131454 has 8 divisors (see below), whose sum is σ = 130444128. Its totient is φ = 38650080.

The previous prime is 82131443. The next prime is 82131457. The reversal of 82131454 is 45413128.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82131457) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1207782 + ... + 1207849.

It is an arithmetic number, because the mean of its divisors is an integer number (16305516).

Almost surely, 2^82131454 is an apocalyptic number.

82131454 is a deficient number, since it is larger than the sum of its proper divisors (48312674).

82131454 is a wasteful number, since it uses less digits than its factorization.

82131454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415650.

The product of its digits is 3840, while the sum is 28.

The square root of 82131454 is about 9062.6405644271. The cubic root of 82131454 is about 434.6801788877.

The spelling of 82131454 in words is "eighty-two million, one hundred thirty-one thousand, four hundred fifty-four".