2131298 has 8 divisors (see below), whose sum is σ = 3442908. Its totient is φ = 983664.

The previous prime is 2131291. The next prime is 2131319. The reversal of 2131298 is 8921312.

It can be written as a sum of positive squares in 2 ways, for example, as 1857769 + 273529 = 1363^2 + 523^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 81973 = 2131298 / (2 + 1 + 3 + 1 + 2 + 9 + 8).

It is not an unprimeable number, because it can be changed into a prime (2131291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40961 + ... + 41012.

2^2131298 is an apocalyptic number.

2131298 is a deficient number, since it is larger than the sum of its proper divisors (1311610).

2131298 is a wasteful number, since it uses less digits than its factorization.

2131298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81988.

The product of its digits is 864, while the sum is 26.

The square root of 2131298 is about 1459.8965716790. The cubic root of 2131298 is about 128.6909654891.

The spelling of 2131298 in words is "two million, one hundred thirty-one thousand, two hundred ninety-eight".