125623381393 has 8 divisors (see below), whose sum is σ = 126084543912. Its totient is φ = 125163033216.

The previous prime is 125623381379. The next prime is 125623381399. The reversal of 125623381393 is 393183326521.

It can be written as a sum of positive squares in 4 ways, for example, as 105246389889 + 20376991504 = 324417^2 + 142748^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 125623381393 - 2¹³ = 125623373201 is a prime.

It is a super-2 number, since 2×125623381393² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125623381399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106371 + ... + 512407.

It is an arithmetic number, because the mean of its divisors is an integer number (15760567989).

Almost surely, 2^125623381393 is an apocalyptic number.

It is an amenable number.

125623381393 is a deficient number, since it is larger than the sum of its proper divisors (461162519).

125623381393 is an equidigital number, since it uses as much as digits as its factorization.

125623381393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407171.

The product of its digits is 699840, while the sum is 46.

The spelling of 125623381393 in words is "one hundred twenty-five billion, six hundred twenty-three million, three hundred eighty-one thousand, three hundred ninety-three".