2651190121 has 8 divisors (see below), whose sum is σ = 2750758920. Its totient is φ = 2552164608.

The previous prime is 2651190089. The next prime is 2651190133. The reversal of 2651190121 is 1210911562.

It can be written as a sum of positive squares in 4 ways, for example, as 48149721 + 2603040400 = 6939^2 + 51020^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2651190121 - 2⁵ = 2651190089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2651190121.

It is not an unprimeable number, because it can be changed into a prime (2651190181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125866 + ... + 145411.

It is an arithmetic number, because the mean of its divisors is an integer number (343844865).

Almost surely, 2^2651190121 is an apocalyptic number.

It is an amenable number.

2651190121 is a deficient number, since it is larger than the sum of its proper divisors (99568799).

2651190121 is a wasteful number, since it uses less digits than its factorization.

2651190121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271643.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 2651190121 is about 51489.7088843975. The cubic root of 2651190121 is about 1384.0346326619.

The spelling of 2651190121 in words is "two billion, six hundred fifty-one million, one hundred ninety thousand, one hundred twenty-one".