125276501389 has 8 divisors (see below), whose sum is σ = 134916437432. Its totient is φ = 115637034240.

The previous prime is 125276501381. The next prime is 125276501431. The reversal of 125276501389 is 983105672521.

It can be written as a sum of positive squares in 4 ways, for example, as 1314062500 + 123962438889 = 36250^2 + 352083^2 .

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

It is not a de Polignac number, because 125276501389 - 2³ = 125276501381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125276501381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600457 + ... + 781729.

It is an arithmetic number, because the mean of its divisors is an integer number (16864554679).

Almost surely, 2^125276501389 is an apocalyptic number.

It is an amenable number.

125276501389 is a deficient number, since it is larger than the sum of its proper divisors (9639936043).

125276501389 is a wasteful number, since it uses less digits than its factorization.

125276501389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234447.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 125276501389 in words is "one hundred twenty-five billion, two hundred seventy-six million, five hundred one thousand, three hundred eighty-nine".