125134381789 has 16 divisors (see below), whose sum is σ = 126464405760. Its totient is φ = 123811369920.

The previous prime is 125134381787. The next prime is 125134381817. The reversal of 125134381789 is 987183431521.

It is not a de Polignac number, because 125134381789 - 2¹ = 125134381787 is a prime.

It is a super-2 number, since 2×125134381789² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125134381787) 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 in 15 ways as a sum of consecutive naturals, for example, 79048092 + ... + 79049674.

It is an arithmetic number, because the mean of its divisors is an integer number (7904025360).

Almost surely, 2^125134381789 is an apocalyptic number.

It is an amenable number.

125134381789 is a deficient number, since it is larger than the sum of its proper divisors (1330023971).

125134381789 is a wasteful number, since it uses less digits than its factorization.

125134381789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300.

The product of its digits is 1451520, while the sum is 52.

The spelling of 125134381789 in words is "one hundred twenty-five billion, one hundred thirty-four million, three hundred eighty-one thousand, seven hundred eighty-nine".