125541031 has 8 divisors (see below), whose sum is σ = 156518784. Its totient is φ = 97824120.

The previous prime is 125541023. The next prime is 125541043. The reversal of 125541031 is 130145521.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 125541031 - 2³ = 125541023 is a prime.

It is a super-3 number, since 3×125541031³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125540993 and 125541011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125541001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815125 + ... + 815278.

It is an arithmetic number, because the mean of its divisors is an integer number (19564848).

Almost surely, 2^125541031 is an apocalyptic number.

125541031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

125541031 is a deficient number, since it is larger than the sum of its proper divisors (30977753).

125541031 is a wasteful number, since it uses less digits than its factorization.

125541031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630421.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 125541031 is about 11204.5094046995. The cubic root of 125541031 is about 500.7203363992.

Adding to 125541031 its reverse (130145521), we get a palindrome (255686552).

The spelling of 125541031 in words is "one hundred twenty-five million, five hundred forty-one thousand, thirty-one".