1051223156 has 6 divisors (see below), whose sum is σ = 1839640530. Its totient is φ = 525611576.

The previous prime is 1051223143. The next prime is 1051223167. The reversal of 1051223156 is 6513221501.

1051223156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 779303056 + 271920100 = 27916^2 + 16490^2 .

It is a super-2 number, since 2×1051223156² = 2210140247421200672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131402891 + ... + 131402898.

It is an arithmetic number, because the mean of its divisors is an integer number (306606755).

Almost surely, 2^1051223156 is an apocalyptic number.

It is an amenable number.

1051223156 is a deficient number, since it is larger than the sum of its proper divisors (788417374).

1051223156 is a wasteful number, since it uses less digits than its factorization.

1051223156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262805793 (or 262805791 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1051223156 is about 32422.5717055264. The cubic root of 1051223156 is about 1016.7908739168.

Adding to 1051223156 its reverse (6513221501), we get a palindrome (7564444657).

The spelling of 1051223156 in words is "one billion, fifty-one million, two hundred twenty-three thousand, one hundred fifty-six".