125007643 has 2 divisors, whose sum is σ = 125007644. Its totient is φ = 125007642.

The previous prime is 125007611. The next prime is 125007653. The reversal of 125007643 is 346700521.

It is a strong prime.

It is an emirp because it is prime and its reverse (346700521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125007643 - 2⁵ = 125007611 is a prime.

It is not a weakly prime, because it can be changed into another prime (125007653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62503821 + 62503822.

It is an arithmetic number, because the mean of its divisors is an integer number (62503822).

Almost surely, 2^125007643 is an apocalyptic number.

125007643 is a deficient number, since it is larger than the sum of its proper divisors (1).

125007643 is an equidigital number, since it uses as much as digits as its factorization.

125007643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 125007643 is about 11180.6816876253. The cubic root of 125007643 is about 500.0101904590.

The spelling of 125007643 in words is "one hundred twenty-five million, seven thousand, six hundred forty-three".