2156142333 has 8 divisors (see below), whose sum is σ = 2882099488. Its totient is φ = 1433806704.

The previous prime is 2156142319. The next prime is 2156142347. The reversal of 2156142333 is 3332416512.

It is an interprime number because it is at equal distance from previous prime (2156142319) and next prime (2156142347).

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

It is not a de Polignac number, because 2156142333 - 2¹⁴ = 2156125949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2156142333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156147333) 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, 903991 + ... + 906372.

It is an arithmetic number, because the mean of its divisors is an integer number (360262436).

Almost surely, 2^2156142333 is an apocalyptic number.

It is an amenable number.

2156142333 is a deficient number, since it is larger than the sum of its proper divisors (725957155).

2156142333 is a wasteful number, since it uses less digits than its factorization.

2156142333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810763.

The product of its digits is 12960, while the sum is 30.

The square root of 2156142333 is about 46434.2797187595. The cubic root of 2156142333 is about 1291.8908099198.

Adding to 2156142333 its reverse (3332416512), we get a palindrome (5488558845).

The spelling of 2156142333 in words is "two billion, one hundred fifty-six million, one hundred forty-two thousand, three hundred thirty-three".