1198456946 has 4 divisors (see below), whose sum is σ = 1797685422. Its totient is φ = 599228472.

The previous prime is 1198456933. The next prime is 1198456997. The reversal of 1198456946 is 6496548911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6496548911 = 37 ⋅175582403.

It can be written as a sum of positive squares in only one way, i.e., 1045810921 + 152646025 = 32339^2 + 12355^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 299614235 + ... + 299614238.

Almost surely, 2^1198456946 is an apocalyptic number.

1198456946 is a deficient number, since it is larger than the sum of its proper divisors (599228476).

1198456946 is an equidigital number, since it uses as much as digits as its factorization.

1198456946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599228475.

The product of its digits is 1866240, while the sum is 53.

The square root of 1198456946 is about 34618.7369209219. The cubic root of 1198456946 is about 1062.2028906011.

The spelling of 1198456946 in words is "one billion, one hundred ninety-eight million, four hundred fifty-six thousand, nine hundred forty-six".