125813147 has 2 divisors, whose sum is σ = 125813148. Its totient is φ = 125813146.

The previous prime is 125813131. The next prime is 125813201. The reversal of 125813147 is 741318521.

It is a weak prime.

It is an emirp because it is prime and its reverse (741318521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125813147 - 2⁴ = 125813131 is a prime.

It is not a weakly prime, because it can be changed into another prime (125813747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62906573 + 62906574.

It is an arithmetic number, because the mean of its divisors is an integer number (62906574).

Almost surely, 2^125813147 is an apocalyptic number.

125813147 is a deficient number, since it is larger than the sum of its proper divisors (1).

125813147 is an equidigital number, since it uses as much as digits as its factorization.

125813147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 32.

The square root of 125813147 is about 11216.6459781880. The cubic root of 125813147 is about 501.0818534977.

The spelling of 125813147 in words is "one hundred twenty-five million, eight hundred thirteen thousand, one hundred forty-seven".