125898161745 has 8 divisors (see below), whose sum is σ = 201437058816. Its totient is φ = 67145686256.

The previous prime is 125898161731. The next prime is 125898161759. The reversal of 125898161745 is 547161898521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (125898161731) and next prime (125898161759).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125898161745 - 2⁴ = 125898161729 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 4196605377 + ... + 4196605406.

It is an arithmetic number, because the mean of its divisors is an integer number (25179632352).

Almost surely, 2^125898161745 is an apocalyptic number.

125898161745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125898161745 is a deficient number, since it is larger than the sum of its proper divisors (75538897071).

125898161745 is an equidigital number, since it uses as much as digits as its factorization.

125898161745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8393210791.

The product of its digits is 4838400, while the sum is 57.

The spelling of 125898161745 in words is "one hundred twenty-five billion, eight hundred ninety-eight million, one hundred sixty-one thousand, seven hundred forty-five".