125430049 has 2 divisors, whose sum is σ = 125430050. Its totient is φ = 125430048.

The previous prime is 125430043. The next prime is 125430059. The reversal of 125430049 is 940034521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72795024 + 52635025 = 8532^2 + 7255^2 .

It is an emirp because it is prime and its reverse (940034521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125430049 - 2¹¹ = 125428001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125429999 and 125430026.

It is not a weakly prime, because it can be changed into another prime (125430043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62715024 + 62715025.

It is an arithmetic number, because the mean of its divisors is an integer number (62715025).

Almost surely, 2^125430049 is an apocalyptic number.

It is an amenable number.

125430049 is a deficient number, since it is larger than the sum of its proper divisors (1).

125430049 is an equidigital number, since it uses as much as digits as its factorization.

125430049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 125430049 is about 11199.5557501179. Note that the first 3 decimals coincide. The cubic root of 125430049 is about 500.5727423486.

The spelling of 125430049 in words is "one hundred twenty-five million, four hundred thirty thousand, forty-nine".