2157098 has 8 divisors (see below), whose sum is σ = 3242592. Its totient is φ = 1076236.

The previous prime is 2157097. The next prime is 2157109. The reversal of 2157098 is 8907512.

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

It is not an unprimeable number, because it can be changed into a prime (2157091) 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, 461 + ... + 2127.

It is an arithmetic number, because the mean of its divisors is an integer number (405324).

2^2157098 is an apocalyptic number.

2157098 is a deficient number, since it is larger than the sum of its proper divisors (1085494).

2157098 is a wasteful number, since it uses less digits than its factorization.

2157098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 2157098 is about 1468.7062333905. The cubic root of 2157098 is about 129.2081649989.

The spelling of 2157098 in words is "two million, one hundred fifty-seven thousand, ninety-eight".