1298501 has 4 divisors (see below), whose sum is σ = 1303404. Its totient is φ = 1293600.

The previous prime is 1298491. The next prime is 1298537. The reversal of 1298501 is 1058921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 682276 + 616225 = 826^2 + 785^2 .

It is a cyclic number.

It is not a de Polignac number, because 1298501 - 2¹⁰ = 1297477 is a prime.

It is a super-2 number, since 2×1298501² = 3372209694002, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2030 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (325851).

2^1298501 is an apocalyptic number.

It is an amenable number.

1298501 is a deficient number, since it is larger than the sum of its proper divisors (4903).

1298501 is an equidigital number, since it uses as much as digits as its factorization.

1298501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4902.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1298501 is about 1139.5178805091. The cubic root of 1298501 is about 109.0973235075.

The spelling of 1298501 in words is "one million, two hundred ninety-eight thousand, five hundred one".