125481654987 has 8 divisors (see below), whose sum is σ = 180178786704. Its totient is φ = 77219479968.

The previous prime is 125481654979. The next prime is 125481655007. The reversal of 125481654987 is 789456184521.

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

It is not a de Polignac number, because 125481654987 - 2³ = 125481654979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125481654987.

It is not an unprimeable number, because it can be changed into a prime (125481654587) 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, 1608739128 + ... + 1608739205.

It is an arithmetic number, because the mean of its divisors is an integer number (22522348338).

Almost surely, 2^125481654987 is an apocalyptic number.

125481654987 is a deficient number, since it is larger than the sum of its proper divisors (54697131717).

125481654987 is a wasteful number, since it uses less digits than its factorization.

125481654987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3217478349.

The product of its digits is 19353600, while the sum is 60.

The spelling of 125481654987 in words is "one hundred twenty-five billion, four hundred eighty-one million, six hundred fifty-four thousand, nine hundred eighty-seven".