125544659 has 4 divisors (see below), whose sum is σ = 125924280. Its totient is φ = 125165040.

The previous prime is 125544641. The next prime is 125544673. The reversal of 125544659 is 956445521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 956445521 = 733 ⋅1304837.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125544659 is a prime.

It is a super-2 number, since 2×125544659² = 31522922806852562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125544689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189314 + ... + 189975.

It is an arithmetic number, because the mean of its divisors is an integer number (31481070).

Almost surely, 2^125544659 is an apocalyptic number.

125544659 is a deficient number, since it is larger than the sum of its proper divisors (379621).

125544659 is an equidigital number, since it uses as much as digits as its factorization.

125544659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379620.

The product of its digits is 216000, while the sum is 41.

The square root of 125544659 is about 11204.6713026309. The cubic root of 125544659 is about 500.7251597782.

The spelling of 125544659 in words is "one hundred twenty-five million, five hundred forty-four thousand, six hundred fifty-nine".