125405411 has 2 divisors, whose sum is σ = 125405412. Its totient is φ = 125405410.

The previous prime is 125405393. The next prime is 125405419. The reversal of 125405411 is 114504521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125405411 - 2¹⁸ = 125143267 is a prime.

It is not a weakly prime, because it can be changed into another prime (125405419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62702705 + 62702706.

It is an arithmetic number, because the mean of its divisors is an integer number (62702706).

Almost surely, 2^125405411 is an apocalyptic number.

125405411 is a deficient number, since it is larger than the sum of its proper divisors (1).

125405411 is an equidigital number, since it uses as much as digits as its factorization.

125405411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 125405411 is about 11198.4557417530. The cubic root of 125405411 is about 500.5399646664.

Adding to 125405411 its reverse (114504521), we get a palindrome (239909932).

The spelling of 125405411 in words is "one hundred twenty-five million, four hundred five thousand, four hundred eleven".