1122997906 has 32 divisors (see below), whose sum is σ = 1735035120. Its totient is φ = 544997376.

The previous prime is 1122997879. The next prime is 1122997937. The reversal of 1122997906 is 6097992211.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 124121881 + 998876025 = 11141^2 + 31605^2 .

It is a super-2 number, since 2×1122997906² = 2522248593760769672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3332170 + ... + 3332506.

Almost surely, 2^1122997906 is an apocalyptic number.

1122997906 is a deficient number, since it is larger than the sum of its proper divisors (612037214).

1122997906 is a wasteful number, since it uses less digits than its factorization.

1122997906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 1122997906 is about 33511.1609169244. The cubic root of 1122997906 is about 1039.4245787502.

The spelling of 1122997906 in words is "one billion, one hundred twenty-two million, nine hundred ninety-seven thousand, nine hundred six".