125610643 has 2 divisors, whose sum is σ = 125610644. Its totient is φ = 125610642.

The previous prime is 125610581. The next prime is 125610673. The reversal of 125610643 is 346016521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125610643 - 2⁹ = 125610131 is a prime.

It is not a weakly prime, because it can be changed into another prime (125610673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62805321 + 62805322.

It is an arithmetic number, because the mean of its divisors is an integer number (62805322).

Almost surely, 2^125610643 is an apocalyptic number.

125610643 is a deficient number, since it is larger than the sum of its proper divisors (1).

125610643 is an equidigital number, since it uses as much as digits as its factorization.

125610643 is an evil number, because the sum of its binary digits is even.

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

The square root of 125610643 is about 11207.6154020380. The cubic root of 125610643 is about 500.8128684403.

It can be divided in two parts, 125610 and 643, that added together give a triangular number (126253 = T₅₀₂).

The spelling of 125610643 in words is "one hundred twenty-five million, six hundred ten thousand, six hundred forty-three".