1131624226 has 4 divisors (see below), whose sum is σ = 1697436342. Its totient is φ = 565812112.

The previous prime is 1131624223. The next prime is 1131624233. The reversal of 1131624226 is 6224261311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6224261311 = 23 ⋅270620057.

It can be written as a sum of positive squares in only one way, i.e., 858548601 + 273075625 = 29301^2 + 16525^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1131624194 and 1131624203.

It is not an unprimeable number, because it can be changed into a prime (1131624223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282906055 + ... + 282906058.

Almost surely, 2^1131624226 is an apocalyptic number.

1131624226 is a deficient number, since it is larger than the sum of its proper divisors (565812116).

1131624226 is an equidigital number, since it uses as much as digits as its factorization.

1131624226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565812115.

The product of its digits is 3456, while the sum is 28.

The square root of 1131624226 is about 33639.6228575767. The cubic root of 1131624226 is about 1042.0792432394.

Adding to 1131624226 its reverse (6224261311), we get a palindrome (7355885537).

The spelling of 1131624226 in words is "one billion, one hundred thirty-one million, six hundred twenty-four thousand, two hundred twenty-six".