2126180701 has 8 divisors (see below), whose sum is σ = 2293727544. Its totient is φ = 1963353600.

The previous prime is 2126180677. The next prime is 2126180711. The reversal of 2126180701 is 1070816212.

It can be written as a sum of positive squares in 4 ways, for example, as 461132676 + 1665048025 = 21474^2 + 40805^2 .

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 2126180701 - 2²³ = 2117792093 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 2126180701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126180711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1179000 + ... + 1180801.

It is an arithmetic number, because the mean of its divisors is an integer number (286715943).

Almost surely, 2^2126180701 is an apocalyptic number.

It is an amenable number.

2126180701 is a deficient number, since it is larger than the sum of its proper divisors (167546843).

2126180701 is a wasteful number, since it uses less digits than its factorization.

2126180701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359871.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 2126180701 is about 46110.5270084826. The cubic root of 2126180701 is about 1285.8788622031.

Adding to 2126180701 its reverse (1070816212), we get a palindrome (3196996913).

The spelling of 2126180701 in words is "two billion, one hundred twenty-six million, one hundred eighty thousand, seven hundred one".