2122135461 has 6 divisors (see below), whose sum is σ = 3065306790. Its totient is φ = 1414756968.

The previous prime is 2122135453. The next prime is 2122135469. The reversal of 2122135461 is 1645312212.

It is an interprime number because it is at equal distance from previous prime (2122135453) and next prime (2122135469).

It can be written as a sum of positive squares in only one way, i.e., 1694886561 + 427248900 = 41169^2 + 20670^2 .

It is not a de Polignac number, because 2122135461 - 2³ = 2122135453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122135469) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117896406 + ... + 117896423.

It is an arithmetic number, because the mean of its divisors is an integer number (510884465).

Almost surely, 2^2122135461 is an apocalyptic number.

It is an amenable number.

2122135461 is a deficient number, since it is larger than the sum of its proper divisors (943171329).

2122135461 is a wasteful number, since it uses less digits than its factorization.

2122135461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235792835 (or 235792832 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2122135461 is about 46066.6415207360. The cubic root of 2122135461 is about 1285.0628464269.

Adding to 2122135461 its reverse (1645312212), we get a palindrome (3767447673).

The spelling of 2122135461 in words is "two billion, one hundred twenty-two million, one hundred thirty-five thousand, four hundred sixty-one".