1247122026 has 24 divisors (see below), whose sum is σ = 2704450944. Its totient is φ = 415345320.

The previous prime is 1247122021. The next prime is 1247122027. The reversal of 1247122026 is 6202217421.

It is not an unprimeable number, because it can be changed into a prime (1247122021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8506 + ... + 50661.

It is an arithmetic number, because the mean of its divisors is an integer number (112685456).

Almost surely, 2^1247122026 is an apocalyptic number.

1247122026 is an abundant number, since it is smaller than the sum of its proper divisors (1457328918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1247122026 is a wasteful number, since it uses less digits than its factorization.

1247122026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60346 (or 60343 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 1247122026 is about 35314.6149065794. The cubic root of 1247122026 is about 1076.3899887918.

Adding to 1247122026 its reverse (6202217421), we get a palindrome (7449339447).

The spelling of 1247122026 in words is "one billion, two hundred forty-seven million, one hundred twenty-two thousand, twenty-six".