125456587 has 2 divisors, whose sum is σ = 125456588. Its totient is φ = 125456586.

The previous prime is 125456521. The next prime is 125456609. The reversal of 125456587 is 785654521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125456587 - 2¹⁹ = 124932299 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (125456087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62728293 + 62728294.

It is an arithmetic number, because the mean of its divisors is an integer number (62728294).

Almost surely, 2^125456587 is an apocalyptic number.

125456587 is a deficient number, since it is larger than the sum of its proper divisors (1).

125456587 is an equidigital number, since it uses as much as digits as its factorization.

125456587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336000, while the sum is 43.

The square root of 125456587 is about 11200.7404665942. The cubic root of 125456587 is about 500.6080429345.

The spelling of 125456587 in words is "one hundred twenty-five million, four hundred fifty-six thousand, five hundred eighty-seven".