2156298311 has 8 divisors (see below), whose sum is σ = 2200007040. Its totient is φ = 2112828408.

The previous prime is 2156298299. The next prime is 2156298337. The reversal of 2156298311 is 1138926512.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2156298311 - 2¹⁸ = 2156036167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156298611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41411 + ... + 77636.

It is an arithmetic number, because the mean of its divisors is an integer number (275000880).

Almost surely, 2^2156298311 is an apocalyptic number.

2156298311 is a deficient number, since it is larger than the sum of its proper divisors (43708729).

2156298311 is a wasteful number, since it uses less digits than its factorization.

2156298311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119413.

The product of its digits is 25920, while the sum is 38.

The square root of 2156298311 is about 46435.9592449645. The cubic root of 2156298311 is about 1291.9219614943.

The spelling of 2156298311 in words is "two billion, one hundred fifty-six million, two hundred ninety-eight thousand, three hundred eleven".