2156609514 has 8 divisors (see below), whose sum is σ = 4313219040. Its totient is φ = 718869836.

The previous prime is 2156609453. The next prime is 2156609531. The reversal of 2156609514 is 4159066512.

2156609514 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

2156609514 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179717454 + ... + 179717465.

It is an arithmetic number, because the mean of its divisors is an integer number (539152380).

Almost surely, 2^2156609514 is an apocalyptic number.

2156609514 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2156609514 is a wasteful number, since it uses less digits than its factorization.

2156609514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359434924.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 2156609514 is about 46439.3100077940. The cubic root of 2156609514 is about 1291.9841097676.

The spelling of 2156609514 in words is "two billion, one hundred fifty-six million, six hundred nine thousand, five hundred fourteen".