125644540234 has 8 divisors (see below), whose sum is σ = 188468407908. Its totient is φ = 62821737600.

The previous prime is 125644540187. The next prime is 125644540267. The reversal of 125644540234 is 432045446521.

It can be written as a sum of positive squares in 2 ways, for example, as 96439439209 + 29205101025 = 310547^2 + 170895^2 .

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

It is a super-2 number, since 2×125644540234² (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 174784 + ... + 530884.

Almost surely, 2^125644540234 is an apocalyptic number.

125644540234 is a deficient number, since it is larger than the sum of its proper divisors (62823867674).

125644540234 is a wasteful number, since it uses less digits than its factorization.

125644540234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532520.

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 125644540234 its reverse (432045446521), we get a palindrome (557689986755).

The spelling of 125644540234 in words is "one hundred twenty-five billion, six hundred forty-four million, five hundred forty thousand, two hundred thirty-four".