2126196523 has 4 divisors (see below), whose sum is σ = 2319487128. Its totient is φ = 1932905920.

The previous prime is 2126196497. The next prime is 2126196557. The reversal of 2126196523 is 3256916212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2126196523 - 2²¹ = 2124099371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2126196563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96645286 + ... + 96645307.

It is an arithmetic number, because the mean of its divisors is an integer number (579871782).

Almost surely, 2^2126196523 is an apocalyptic number.

2126196523 is a deficient number, since it is larger than the sum of its proper divisors (193290605).

2126196523 is a wasteful number, since it uses less digits than its factorization.

2126196523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193290604.

The product of its digits is 38880, while the sum is 37.

The square root of 2126196523 is about 46110.6985741921. The cubic root of 2126196523 is about 1285.8820518230.

The spelling of 2126196523 in words is "two billion, one hundred twenty-six million, one hundred ninety-six thousand, five hundred twenty-three".