2156836226 has 8 divisors (see below), whose sum is σ = 3310492944. Its totient is φ = 1053338580.

The previous prime is 2156836211. The next prime is 2156836249. The reversal of 2156836226 is 6226386512.

It is a happy number.

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

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, 12539660 + ... + 12539831.

It is an arithmetic number, because the mean of its divisors is an integer number (413811618).

Almost surely, 2^2156836226 is an apocalyptic number.

2156836226 is a deficient number, since it is larger than the sum of its proper divisors (1153656718).

2156836226 is a wasteful number, since it uses less digits than its factorization.

2156836226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25079536.

The product of its digits is 207360, while the sum is 41.

The square root of 2156836226 is about 46441.7508929196. The cubic root of 2156836226 is about 1292.0293811432.

The spelling of 2156836226 in words is "two billion, one hundred fifty-six million, eight hundred thirty-six thousand, two hundred twenty-six".