125404030163 has 4 divisors (see below), whose sum is σ = 126361312968. Its totient is φ = 124446747360.

The previous prime is 125404030133. The next prime is 125404030177. The reversal of 125404030163 is 361030404521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125404030163 - 2¹⁶ = 125403964627 is a prime.

It is a super-2 number, since 2×125404030163² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125404030133) 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 3 ways as a sum of consecutive naturals, for example, 478641206 + ... + 478641467.

It is an arithmetic number, because the mean of its divisors is an integer number (31590328242).

Almost surely, 2^125404030163 is an apocalyptic number.

125404030163 is a deficient number, since it is larger than the sum of its proper divisors (957282805).

125404030163 is an equidigital number, since it uses as much as digits as its factorization.

125404030163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957282804.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 125404030163 its reverse (361030404521), we get a palindrome (486434434684).

The spelling of 125404030163 in words is "one hundred twenty-five billion, four hundred four million, thirty thousand, one hundred sixty-three".