1290334855 has 16 divisors (see below), whose sum is σ = 1641556224. Its totient is φ = 971965440.

The previous prime is 1290334847. The next prime is 1290334883. The reversal of 1290334855 is 5584330921.

It is not a de Polignac number, because 1290334855 - 2³ = 1290334847 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 106762 + ... + 118231.

It is an arithmetic number, because the mean of its divisors is an integer number (102597264).

Almost surely, 2^1290334855 is an apocalyptic number.

1290334855 is a deficient number, since it is larger than the sum of its proper divisors (351221369).

1290334855 is a wasteful number, since it uses less digits than its factorization.

1290334855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225066.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 1290334855 is about 35921.2312567373. The cubic root of 1290334855 is about 1088.6814162287.

The spelling of 1290334855 in words is "one billion, two hundred ninety million, three hundred thirty-four thousand, eight hundred fifty-five".