125275406546 has 4 divisors (see below), whose sum is σ = 187913109822. Its totient is φ = 62637703272.

The previous prime is 125275406513. The next prime is 125275406573. The reversal of 125275406546 is 645604572521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 122860765225 + 2414641321 = 350515^2 + 49139^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 125275406546.

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 as a sum of consecutive naturals, namely, 31318851635 + ... + 31318851638.

Almost surely, 2^125275406546 is an apocalyptic number.

125275406546 is a deficient number, since it is larger than the sum of its proper divisors (62637703276).

125275406546 is an equidigital number, since it uses as much as digits as its factorization.

125275406546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62637703275.

The product of its (nonzero) digits is 2016000, while the sum is 47.

The spelling of 125275406546 in words is "one hundred twenty-five billion, two hundred seventy-five million, four hundred six thousand, five hundred forty-six".