125648602154 has 8 divisors (see below), whose sum is σ = 189562342500. Its totient is φ = 62461154656.

The previous prime is 125648602109. The next prime is 125648602159. The reversal of 125648602154 is 451206846521.

It can be written as a sum of positive squares in 2 ways, for example, as 105477501529 + 20171100625 = 324773^2 + 142025^2 .

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

It is a Curzon number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (125648602159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181572779 + ... + 181573470.

Almost surely, 2^125648602154 is an apocalyptic number.

125648602154 is a deficient number, since it is larger than the sum of its proper divisors (63913740346).

125648602154 is a wasteful number, since it uses less digits than its factorization.

125648602154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363146424.

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 125648602154 in words is "one hundred twenty-five billion, six hundred forty-eight million, six hundred two thousand, one hundred fifty-four".