125040051541 has 4 divisors (see below), whose sum is σ = 125042474412. Its totient is φ = 125037628672.

The previous prime is 125040051529. The next prime is 125040051551. The reversal of 125040051541 is 145150040521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 118166812516 + 6873239025 = 343754^2 + 82905^2 .

It is a cyclic number.

It is not a de Polignac number, because 125040051541 - 2⁵ = 125040051509 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 (125040051551) 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, 1132300 + ... + 1237813.

It is an arithmetic number, because the mean of its divisors is an integer number (31260618603).

Almost surely, 2^125040051541 is an apocalyptic number.

It is an amenable number.

125040051541 is a deficient number, since it is larger than the sum of its proper divisors (2422871).

125040051541 is an equidigital number, since it uses as much as digits as its factorization.

125040051541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422870.

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 125040051541 in words is "one hundred twenty-five billion, forty million, fifty-one thousand, five hundred forty-one".