125212663 has 2 divisors, whose sum is σ = 125212664. Its totient is φ = 125212662.

The previous prime is 125212649. The next prime is 125212697. The reversal of 125212663 is 366212521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125212663 - 2²¹ = 123115511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125212613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62606331 + 62606332.

It is an arithmetic number, because the mean of its divisors is an integer number (62606332).

Almost surely, 2^125212663 is an apocalyptic number.

125212663 is a deficient number, since it is larger than the sum of its proper divisors (1).

125212663 is an equidigital number, since it uses as much as digits as its factorization.

125212663 is an evil number, because the sum of its binary digits is even.

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

The square root of 125212663 is about 11189.8464243259. The cubic root of 125212663 is about 500.2833900165.

The spelling of 125212663 in words is "one hundred twenty-five million, two hundred twelve thousand, six hundred sixty-three".