1301998 has 16 divisors (see below), whose sum is σ = 2029536. Its totient is φ = 626080.

The previous prime is 1301959. The next prime is 1302017. The reversal of 1301998 is 8991031.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7440 + ... + 7612.

It is an arithmetic number, because the mean of its divisors is an integer number (126846).

2^1301998 is an apocalyptic number.

1301998 is a deficient number, since it is larger than the sum of its proper divisors (727538).

1301998 is a wasteful number, since it uses less digits than its factorization.

1301998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 1301998 is about 1141.0512696632. The cubic root of 1301998 is about 109.1951725829.

The spelling of 1301998 in words is "one million, three hundred one thousand, nine hundred ninety-eight".