2156519343 has 32 divisors (see below), whose sum is σ = 3353605632. Its totient is φ = 1218124800.

The previous prime is 2156519297. The next prime is 2156519347. The reversal of 2156519343 is 3439156512.

It is not a de Polignac number, because 2156519343 - 2⁸ = 2156519087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156519347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39123 + ... + 76443.

It is an arithmetic number, because the mean of its divisors is an integer number (104800176).

Almost surely, 2^2156519343 is an apocalyptic number.

2156519343 is a deficient number, since it is larger than the sum of its proper divisors (1197086289).

2156519343 is a wasteful number, since it uses less digits than its factorization.

2156519343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37455.

The product of its digits is 97200, while the sum is 39.

The square root of 2156519343 is about 46438.3391498878. The cubic root of 2156519343 is about 1291.9661029345.

The spelling of 2156519343 in words is "two billion, one hundred fifty-six million, five hundred nineteen thousand, three hundred forty-three".