125541541137 has 4 divisors (see below), whose sum is σ = 167388721520. Its totient is φ = 83694360756.

The previous prime is 125541541109. The next prime is 125541541157. The reversal of 125541541137 is 731145145521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 125541541137 - 2⁸ = 125541540881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125541541095 and 125541541104.

It is not an unprimeable number, because it can be changed into a prime (125541541157) 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, 20923590187 + ... + 20923590192.

It is an arithmetic number, because the mean of its divisors is an integer number (41847180380).

Almost surely, 2^125541541137 is an apocalyptic number.

It is an amenable number.

125541541137 is a deficient number, since it is larger than the sum of its proper divisors (41847180383).

125541541137 is an equidigital number, since it uses as much as digits as its factorization.

125541541137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41847180382.

The product of its digits is 84000, while the sum is 39.

Adding to 125541541137 its reverse (731145145521), we get a palindrome (856686686658).

The spelling of 125541541137 in words is "one hundred twenty-five billion, five hundred forty-one million, five hundred forty-one thousand, one hundred thirty-seven".