2155494315 has 16 divisors (see below), whose sum is σ = 3714082848. Its totient is φ = 1061166336.

The previous prime is 2155494301. The next prime is 2155494337. The reversal of 2155494315 is 5134945512.

It is a happy number.

2155494315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2155494315 - 2⁵ = 2155494283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5526714 + ... + 5527103.

It is an arithmetic number, because the mean of its divisors is an integer number (232130178).

Almost surely, 2^2155494315 is an apocalyptic number.

2155494315 is a deficient number, since it is larger than the sum of its proper divisors (1558588533).

2155494315 is a wasteful number, since it uses less digits than its factorization.

2155494315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11053838.

The product of its digits is 108000, while the sum is 39.

The square root of 2155494315 is about 46427.3013969152. The cubic root of 2155494315 is about 1291.7613731368.

The spelling of 2155494315 in words is "two billion, one hundred fifty-five million, four hundred ninety-four thousand, three hundred fifteen".