125512973 has 2 divisors, whose sum is σ = 125512974. Its totient is φ = 125512972.

The previous prime is 125512967. The next prime is 125512987. The reversal of 125512973 is 379215521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107889769 + 17623204 = 10387^2 + 4198^2 .

It is a cyclic number.

It is not a de Polignac number, because 125512973 - 2¹⁴ = 125496589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125512903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62756486 + 62756487.

It is an arithmetic number, because the mean of its divisors is an integer number (62756487).

Almost surely, 2^125512973 is an apocalyptic number.

It is an amenable number.

125512973 is a deficient number, since it is larger than the sum of its proper divisors (1).

125512973 is an equidigital number, since it uses as much as digits as its factorization.

125512973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 35.

The square root of 125512973 is about 11203.2572495681. The cubic root of 125512973 is about 500.6830305138.

The spelling of 125512973 in words is "one hundred twenty-five million, five hundred twelve thousand, nine hundred seventy-three".