124045261 has 2 divisors, whose sum is σ = 124045262. Its totient is φ = 124045260.

The previous prime is 124045241. The next prime is 124045297. The reversal of 124045261 is 162540421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115670025 + 8375236 = 10755^2 + 2894^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124045261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124045211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62022630 + 62022631.

It is an arithmetic number, because the mean of its divisors is an integer number (62022631).

Almost surely, 2^124045261 is an apocalyptic number.

It is an amenable number.

124045261 is a deficient number, since it is larger than the sum of its proper divisors (1).

124045261 is an equidigital number, since it uses as much as digits as its factorization.

124045261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 124045261 is about 11137.5608191381. The cubic root of 124045261 is about 498.7237598605.

Adding to 124045261 its reverse (162540421), we get a palindrome (286585682).

The spelling of 124045261 in words is "one hundred twenty-four million, forty-five thousand, two hundred sixty-one".