125151225541 has 4 divisors (see below), whose sum is σ = 125152031212. Its totient is φ = 125150419872.

The previous prime is 125151225503. The next prime is 125151225593. The reversal of 125151225541 is 145522151521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 145522151521 = 1709 ⋅85150469.

It can be written as a sum of positive squares in 2 ways, for example, as 57384202500 + 67767023041 = 239550^2 + 260321^2 .

It is a cyclic number.

It is not a de Polignac number, because 125151225541 - 2¹⁹ = 125150701253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125151225497 and 125151225506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125151225041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87600 + ... + 507913.

It is an arithmetic number, because the mean of its divisors is an integer number (31288007803).

Almost surely, 2^125151225541 is an apocalyptic number.

It is an amenable number.

125151225541 is a deficient number, since it is larger than the sum of its proper divisors (805671).

125151225541 is an equidigital number, since it uses as much as digits as its factorization.

125151225541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805670.

The product of its digits is 20000, while the sum is 34.

The spelling of 125151225541 in words is "one hundred twenty-five billion, one hundred fifty-one million, two hundred twenty-five thousand, five hundred forty-one".