2135615465 has 8 divisors (see below), whose sum is σ = 2562991368. Its totient is φ = 1708323840.

The previous prime is 2135615459. The next prime is 2135615491. The reversal of 2135615465 is 5645165312.

It can be written as a sum of positive squares in 4 ways, for example, as 824378944 + 1311236521 = 28712^2 + 36211^2 .

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

It is not a de Polignac number, because 2135615465 - 2¹² = 2135611369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72329 + ... + 97481.

It is an arithmetic number, because the mean of its divisors is an integer number (320373921).

Almost surely, 2^2135615465 is an apocalyptic number.

It is an amenable number.

2135615465 is a deficient number, since it is larger than the sum of its proper divisors (427375903).

2135615465 is a wasteful number, since it uses less digits than its factorization.

2135615465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42139.

The product of its digits is 108000, while the sum is 38.

The square root of 2135615465 is about 46212.7197316929. The cubic root of 2135615465 is about 1287.7780521157.

The spelling of 2135615465 in words is "two billion, one hundred thirty-five million, six hundred fifteen thousand, four hundred sixty-five".