1198552401 has 12 divisors (see below), whose sum is σ = 1732532100. Its totient is φ = 798439680.

The previous prime is 1198552387. The next prime is 1198552403. The reversal of 1198552401 is 1042558911.

1198552401 is a `hidden beast` number, since 11 + 98 + 552 + 4 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 622552401 + 576000000 = 24951^2 + 24000^2 .

It is not a de Polignac number, because 1198552401 - 2⁹ = 1198551889 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1198552403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36676 + ... + 61173.

It is an arithmetic number, because the mean of its divisors is an integer number (144377675).

Almost surely, 2^1198552401 is an apocalyptic number.

It is an amenable number.

1198552401 is a deficient number, since it is larger than the sum of its proper divisors (533979699).

1198552401 is a wasteful number, since it uses less digits than its factorization.

1198552401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99216 (or 99213 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 1198552401 is about 34620.1155543999. The cubic root of 1198552401 is about 1062.2310907200.

The spelling of 1198552401 in words is "one billion, one hundred ninety-eight million, five hundred fifty-two thousand, four hundred one".