2215155434 has 8 divisors (see below), whose sum is σ = 3325178628. Its totient is φ = 1106762560.

The previous prime is 2215155433. The next prime is 2215155457. The reversal of 2215155434 is 4345515122.

It can be written as a sum of positive squares in 2 ways, for example, as 2215114225 + 41209 = 47065^2 + 203^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2215155434.

It is not an unprimeable number, because it can be changed into a prime (2215155431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404177 + ... + 409620.

Almost surely, 2^2215155434 is an apocalyptic number.

2215155434 is a deficient number, since it is larger than the sum of its proper divisors (1110023194).

2215155434 is a wasteful number, since it uses less digits than its factorization.

2215155434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815160.

The product of its digits is 24000, while the sum is 32.

The square root of 2215155434 is about 47065.4377861292. The cubic root of 2215155434 is about 1303.5711344678.

The spelling of 2215155434 in words is "two billion, two hundred fifteen million, one hundred fifty-five thousand, four hundred thirty-four".