1012126398 has 8 divisors (see below), whose sum is σ = 2024252808. Its totient is φ = 337375464.

The previous prime is 1012126397. The next prime is 1012126417. The reversal of 1012126398 is 8936212101.

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

1012126398 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012126391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84343861 + ... + 84343872.

It is an arithmetic number, because the mean of its divisors is an integer number (253031601).

Almost surely, 2^1012126398 is an apocalyptic number.

1012126398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1012126398 is a wasteful number, since it uses less digits than its factorization.

1012126398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168687738.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1012126398 is about 31813.9340226889. The cubic root of 1012126398 is about 1004.0259030211.

Adding to 1012126398 its reverse (8936212101), we get a palindrome (9948338499).

The spelling of 1012126398 in words is "one billion, twelve million, one hundred twenty-six thousand, three hundred ninety-eight".