1290497853 has 16 divisors (see below), whose sum is σ = 1779064832. Its totient is φ = 831222000.

The previous prime is 1290497843. The next prime is 1290497911. The reversal of 1290497853 is 3587940921.

It is not a de Polignac number, because 1290497853 - 2⁵ = 1290497821 is a prime.

It is the 35924-th Hogben number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290497833) by changing a digit.

It is a nontrivial repunit in base 35923.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47688 + ... + 69678.

It is an arithmetic number, because the mean of its divisors is an integer number (111191552).

Almost surely, 2^1290497853 is an apocalyptic number.

It is an amenable number.

1290497853 is a deficient number, since it is larger than the sum of its proper divisors (488566979).

1290497853 is a wasteful number, since it uses less digits than its factorization.

1290497853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22656.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 1290497853 is about 35923.5000104388. The cubic root of 1290497853 is about 1088.7272558600.

The spelling of 1290497853 in words is "one billion, two hundred ninety million, four hundred ninety-seven thousand, eight hundred fifty-three".