2119197501 has 6 divisors (see below), whose sum is σ = 3061063070. Its totient is φ = 1412798328.

The previous prime is 2119197497. The next prime is 2119197559. The reversal of 2119197501 is 1057919112.

It can be written as a sum of positive squares in only one way, i.e., 1753431876 + 365765625 = 41874^2 + 19125^2 .

It is not a de Polignac number, because 2119197501 - 2² = 2119197497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2119190501) 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 5 ways as a sum of consecutive naturals, for example, 117733186 + ... + 117733203.

Almost surely, 2^2119197501 is an apocalyptic number.

It is an amenable number.

2119197501 is a deficient number, since it is larger than the sum of its proper divisors (941865569).

2119197501 is a wasteful number, since it uses less digits than its factorization.

2119197501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235466395 (or 235466392 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 36.

The square root of 2119197501 is about 46034.7423257696. The cubic root of 2119197501 is about 1284.4695436043.

The spelling of 2119197501 in words is "two billion, one hundred nineteen million, one hundred ninety-seven thousand, five hundred one".