1298895 has 16 divisors (see below), whose sum is σ = 2238432. Its totient is φ = 639360.

The previous prime is 1298887. The next prime is 1298909. The reversal of 1298895 is 5988921.

It is a happy number.

It is not a de Polignac number, because 1298895 - 2³ = 1298887 is a prime.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 3136 + ... + 3525.

It is an arithmetic number, because the mean of its divisors is an integer number (139902).

2^1298895 is an apocalyptic number.

1298895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1298895 is a deficient number, since it is larger than the sum of its proper divisors (939537).

1298895 is a wasteful number, since it uses less digits than its factorization.

1298895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6682.

The product of its digits is 51840, while the sum is 42.

The square root of 1298895 is about 1139.6907475276. The cubic root of 1298895 is about 109.1083567422.

The spelling of 1298895 in words is "one million, two hundred ninety-eight thousand, eight hundred ninety-five".