1298122394 has 8 divisors (see below), whose sum is σ = 1974608928. Its totient is φ = 639919420.

The previous prime is 1298122381. The next prime is 1298122403. The reversal of 1298122394 is 4932218921.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4570712 + ... + 4570995.

It is an arithmetic number, because the mean of its divisors is an integer number (246826116).

Almost surely, 2^1298122394 is an apocalyptic number.

1298122394 is a deficient number, since it is larger than the sum of its proper divisors (676486534).

1298122394 is an equidigital number, since it uses as much as digits as its factorization.

1298122394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9141780.

The product of its digits is 62208, while the sum is 41.

The square root of 1298122394 is about 36029.4656357821. The cubic root of 1298122394 is about 1090.8671925015.

The spelling of 1298122394 in words is "one billion, two hundred ninety-eight million, one hundred twenty-two thousand, three hundred ninety-four".