2125163901 has 8 divisors (see below), whose sum is σ = 3238345024. Its totient is φ = 1214379360.

The previous prime is 2125163881. The next prime is 2125163903. The reversal of 2125163901 is 1093615212.

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

It is not a de Polignac number, because 2125163901 - 2⁵ = 2125163869 is a prime.

It is a super-2 number, since 2×2125163901² = 9032643212227075602, which contains 22 as substring.

It is the 46100-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125163903) by changing a digit.

It is a nontrivial repunit in base 46099.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50599120 + ... + 50599161.

It is an arithmetic number, because the mean of its divisors is an integer number (404793128).

Almost surely, 2^2125163901 is an apocalyptic number.

2125163901 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2125163901 is a deficient number, since it is larger than the sum of its proper divisors (1113181123).

2125163901 is a wasteful number, since it uses less digits than its factorization.

2125163901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101198291.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 2125163901 is about 46099.5000081346. The cubic root of 2125163901 is about 1285.6738482538.

The spelling of 2125163901 in words is "two billion, one hundred twenty-five million, one hundred sixty-three thousand, nine hundred one".