2153678115 has 16 divisors (see below), whose sum is σ = 3467837088. Its totient is φ = 1141310976.

The previous prime is 2153678113. The next prime is 2153678143. The reversal of 2153678115 is 5118763512.

It is not a de Polignac number, because 2153678115 - 2¹ = 2153678113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2153678113) 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, 454902 + ... + 459611.

It is an arithmetic number, because the mean of its divisors is an integer number (216739818).

Almost surely, 2^2153678115 is an apocalyptic number.

2153678115 is a deficient number, since it is larger than the sum of its proper divisors (1314158973).

2153678115 is a wasteful number, since it uses less digits than its factorization.

2153678115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914678.

The product of its digits is 50400, while the sum is 39.

The square root of 2153678115 is about 46407.7376630234. The cubic root of 2153678115 is about 1291.3984623756.

The spelling of 2153678115 in words is "two billion, one hundred fifty-three million, six hundred seventy-eight thousand, one hundred fifteen".