125132519 has 2 divisors, whose sum is σ = 125132520. Its totient is φ = 125132518.

The previous prime is 125132509. The next prime is 125132531. The reversal of 125132519 is 915231521.

It is a weak prime.

It is an emirp because it is prime and its reverse (915231521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125132519 - 2⁴ = 125132503 is a prime.

It is a super-2 number, since 2×125132519² = 31316294622570722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 125132491 and 125132500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125132509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62566259 + 62566260.

It is an arithmetic number, because the mean of its divisors is an integer number (62566260).

Almost surely, 2^125132519 is an apocalyptic number.

125132519 is a deficient number, since it is larger than the sum of its proper divisors (1).

125132519 is an equidigital number, since it uses as much as digits as its factorization.

125132519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 29.

The square root of 125132519 is about 11186.2647474481. The cubic root of 125132519 is about 500.1766295966.

The spelling of 125132519 in words is "one hundred twenty-five million, one hundred thirty-two thousand, five hundred nineteen".