82126402 has 8 divisors (see below), whose sum is σ = 123391116. Its totient is φ = 40996032.

The previous prime is 82126393. The next prime is 82126423. The reversal of 82126402 is 20462128.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61795321 + 20331081 = 7861^2 + 4509^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32043 + ... + 34510.

Almost surely, 2^82126402 is an apocalyptic number.

82126402 is a deficient number, since it is larger than the sum of its proper divisors (41264714).

82126402 is a wasteful number, since it uses less digits than its factorization.

82126402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67172.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 82126402 is about 9062.3618334295. The cubic root of 82126402 is about 434.6712661461.

It can be divided in two parts, 82126 and 402, that added together give a palindrome (82528).

The spelling of 82126402 in words is "eighty-two million, one hundred twenty-six thousand, four hundred two".