125001652163 has 4 divisors (see below), whose sum is σ = 125042760648. Its totient is φ = 124960543680.

The previous prime is 125001652159. The next prime is 125001652169. The reversal of 125001652163 is 361256100521.

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 125001652163 - 2² = 125001652159 is a prime.

It is a super-3 number, since 3×125001652163³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125001652169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20549681 + ... + 20555762.

It is an arithmetic number, because the mean of its divisors is an integer number (31260690162).

Almost surely, 2^125001652163 is an apocalyptic number.

125001652163 is a deficient number, since it is larger than the sum of its proper divisors (41108485).

125001652163 is an equidigital number, since it uses as much as digits as its factorization.

125001652163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41108484.

The product of its (nonzero) digits is 10800, while the sum is 32.

Adding to 125001652163 its reverse (361256100521), we get a palindrome (486257752684).

The spelling of 125001652163 in words is "one hundred twenty-five billion, one million, six hundred fifty-two thousand, one hundred sixty-three".