1290098 has 4 divisors (see below), whose sum is σ = 1935150. Its totient is φ = 645048.

The previous prime is 1290083. The next prime is 1290109. The reversal of 1290098 is 8900921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8900921 = 331 ⋅26891.

It can be written as a sum of positive squares in only one way, i.e., 1006009 + 284089 = 1003^2 + 533^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1290098.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 322523 + ... + 322526.

2^1290098 is an apocalyptic number.

1290098 is a deficient number, since it is larger than the sum of its proper divisors (645052).

1290098 is an equidigital number, since it uses as much as digits as its factorization.

1290098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645051.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 1290098 is about 1135.8248104351. The cubic root of 1290098 is about 108.8614799047.

The spelling of 1290098 in words is "one million, two hundred ninety thousand, ninety-eight".