83125052138 has 8 divisors (see below), whose sum is σ = 124700293380. Its totient is φ = 41558287680.

The previous prime is 83125052089. The next prime is 83125052141.

83125052138 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 62323624609 + 20801427529 = 249647^2 + 144227^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2094623 + ... + 2133938.

Almost surely, 2^83125052138 is an apocalyptic number.

83125052138 is a deficient number, since it is larger than the sum of its proper divisors (41575241242).

83125052138 is a wasteful number, since it uses less digits than its factorization.

83125052138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4238392.

The product of its (nonzero) digits is 57600, while the sum is 38.

It can be divided in two parts, 831250 and 52138, that added together give a palindrome (883388).

The spelling of 83125052138 in words is "eighty-three billion, one hundred twenty-five million, fifty-two thousand, one hundred thirty-eight".