125222987 has 2 divisors, whose sum is σ = 125222988. Its totient is φ = 125222986.

The previous prime is 125222963. The next prime is 125223001. The reversal of 125222987 is 789222521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125222987 - 2²² = 121028683 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125222987.

It is not a weakly prime, because it can be changed into another prime (125222917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62611493 + 62611494.

It is an arithmetic number, because the mean of its divisors is an integer number (62611494).

Almost surely, 2^125222987 is an apocalyptic number.

125222987 is a deficient number, since it is larger than the sum of its proper divisors (1).

125222987 is an equidigital number, since it uses as much as digits as its factorization.

125222987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 38.

The square root of 125222987 is about 11190.3077258849. The cubic root of 125222987 is about 500.2971393814.

The spelling of 125222987 in words is "one hundred twenty-five million, two hundred twenty-two thousand, nine hundred eighty-seven".