125601295361 has 4 divisors (see below), whose sum is σ = 125605917252. Its totient is φ = 125596673472.

The previous prime is 125601295343. The next prime is 125601295387. The reversal of 125601295361 is 163592106521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 111076224961 + 14525070400 = 333281^2 + 120520^2 .

It is a cyclic number.

It is not a de Polignac number, because 125601295361 - 2¹⁴ = 125601278977 is a prime.

It is a super-2 number, since 2×125601295361² (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 (125601295661) 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, 2269940 + ... + 2324613.

It is an arithmetic number, because the mean of its divisors is an integer number (31401479313).

Almost surely, 2^125601295361 is an apocalyptic number.

It is an amenable number.

125601295361 is a deficient number, since it is larger than the sum of its proper divisors (4621891).

125601295361 is an equidigital number, since it uses as much as digits as its factorization.

125601295361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621890.

The product of its (nonzero) digits is 97200, while the sum is 41.

The spelling of 125601295361 in words is "one hundred twenty-five billion, six hundred one million, two hundred ninety-five thousand, three hundred sixty-one".