1292198 has 4 divisors (see below), whose sum is σ = 1938300. Its totient is φ = 646098.

The previous prime is 1292177. The next prime is 1292219. The reversal of 1292198 is 8912921.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (1292177) and next prime (1292219).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323048 + ... + 323051.

It is an arithmetic number, because the mean of its divisors is an integer number (484575).

2^1292198 is an apocalyptic number.

1292198 is a deficient number, since it is larger than the sum of its proper divisors (646102).

1292198 is an equidigital number, since it uses as much as digits as its factorization.

1292198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646101.

The product of its digits is 2592, while the sum is 32.

The square root of 1292198 is about 1136.7488728827. The cubic root of 1292198 is about 108.9205155174.

The spelling of 1292198 in words is "one million, two hundred ninety-two thousand, one hundred ninety-eight".