124999541 has 8 divisors (see below), whose sum is σ = 129434520. Its totient is φ = 120572928.

The previous prime is 124999517. The next prime is 124999561. The reversal of 124999541 is 145999421.

It can be written as a sum of positive squares in 4 ways, for example, as 11662225 + 113337316 = 3415^2 + 10646^2 .

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 124999541 - 2⁶ = 124999477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 124999492 and 124999501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124999561) 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, 57425 + ... + 59561.

It is an arithmetic number, because the mean of its divisors is an integer number (16179315).

Almost surely, 2^124999541 is an apocalyptic number.

It is an amenable number.

124999541 is a deficient number, since it is larger than the sum of its proper divisors (4434979).

124999541 is a wasteful number, since it uses less digits than its factorization.

124999541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4183.

The product of its digits is 116640, while the sum is 44.

The square root of 124999541 is about 11180.3193603761. The cubic root of 124999541 is about 499.9993879993. Note that the first 3 decimals are identical.

The spelling of 124999541 in words is "one hundred twenty-four million, nine hundred ninety-nine thousand, five hundred forty-one".