1290498273 has 12 divisors (see below), whose sum is σ = 1864589220. Its totient is φ = 860084736.

The previous prime is 1290498229. The next prime is 1290498277. The reversal of 1290498273 is 3728940921.

1290498273 is a `hidden beast` number, since 1 + 2 + 90 + 498 + 2 + 73 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 115928289 + 1174569984 = 10767^2 + 34272^2 .

It is not a de Polignac number, because 1290498273 - 2⁸ = 1290498017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1290498277) 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, 15793 + ... + 53201.

It is an arithmetic number, because the mean of its divisors is an integer number (155382435).

Almost surely, 2^1290498273 is an apocalyptic number.

It is an amenable number.

1290498273 is a deficient number, since it is larger than the sum of its proper divisors (574090947).

1290498273 is a wasteful number, since it uses less digits than its factorization.

1290498273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41248 (or 41245 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1290498273 is about 35923.5058561939. The cubic root of 1290498273 is about 1088.7273739708.

The spelling of 1290498273 in words is "one billion, two hundred ninety million, four hundred ninety-eight thousand, two hundred seventy-three".