2134615405 has 16 divisors (see below), whose sum is σ = 2765561904. Its totient is φ = 1572341760.

The previous prime is 2134615393. The next prime is 2134615409. The reversal of 2134615405 is 5045164312.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 288796036 + 1845819369 = 16994^2 + 42963^2 .

It is not a de Polignac number, because 2134615405 - 2⁷ = 2134615277 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 (2134615409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15556 + ... + 67165.

It is an arithmetic number, because the mean of its divisors is an integer number (172847619).

Almost surely, 2^2134615405 is an apocalyptic number.

It is an amenable number.

2134615405 is a deficient number, since it is larger than the sum of its proper divisors (630946499).

2134615405 is a wasteful number, since it uses less digits than its factorization.

2134615405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83136.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 2134615405 is about 46201.8982835121. The cubic root of 2134615405 is about 1287.5770083703.

Adding to 2134615405 its reverse (5045164312), we get a palindrome (7179779717).

The spelling of 2134615405 in words is "two billion, one hundred thirty-four million, six hundred fifteen thousand, four hundred five".