1290813126 has 8 divisors (see below), whose sum is σ = 2581626264. Its totient is φ = 430271040.

The previous prime is 1290813119. The next prime is 1290813133. The reversal of 1290813126 is 6213180921.

It is an interprime number because it is at equal distance from previous prime (1290813119) and next prime (1290813133).

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

1290813126 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107567755 + ... + 107567766.

It is an arithmetic number, because the mean of its divisors is an integer number (322703283).

Almost surely, 2^1290813126 is an apocalyptic number.

1290813126 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.

1290813126 is a wasteful number, since it uses less digits than its factorization.

1290813126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215135526.

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

The square root of 1290813126 is about 35927.8878588764. The cubic root of 1290813126 is about 1088.8159085607.

The spelling of 1290813126 in words is "one billion, two hundred ninety million, eight hundred thirteen thousand, one hundred twenty-six".