1298121 has 16 divisors (see below), whose sum is σ = 1908480. Its totient is φ = 778320.

The previous prime is 1298119. The next prime is 1298131. The reversal of 1298121 is 1218921.

It is not a de Polignac number, because 1298121 - 2¹ = 1298119 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1298091 and 1298100.

It is not an unprimeable number, because it can be changed into a prime (1298111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4446 + ... + 4728.

It is an arithmetic number, because the mean of its divisors is an integer number (119280).

2^1298121 is an apocalyptic number.

1298121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1298121 is a deficient number, since it is larger than the sum of its proper divisors (610359).

1298121 is a wasteful number, since it uses less digits than its factorization.

1298121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436.

The product of its digits is 288, while the sum is 24.

The square root of 1298121 is about 1139.3511311268. The cubic root of 1298121 is about 109.0866802022.

The spelling of 1298121 in words is "one million, two hundred ninety-eight thousand, one hundred twenty-one".