1163550401 has 8 divisors (see below), whose sum is σ = 1265462184. Its totient is φ = 1063411200.

The previous prime is 1163550347. The next prime is 1163550419. The reversal of 1163550401 is 1040553611.

It can be written as a sum of positive squares in 4 ways, for example, as 442681600 + 720868801 = 21040^2 + 26849^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1163550401 - 2³⁰ = 89808577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1163550701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441776 + ... + 444401.

It is an arithmetic number, because the mean of its divisors is an integer number (158182773).

Almost surely, 2^1163550401 is an apocalyptic number.

It is an amenable number.

1163550401 is a deficient number, since it is larger than the sum of its proper divisors (101911783).

1163550401 is a wasteful number, since it uses less digits than its factorization.

1163550401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886291.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1163550401 is about 34110.8545920503. The cubic root of 1163550401 is about 1051.7884564666.

The spelling of 1163550401 in words is "one billion, one hundred sixty-three million, five hundred fifty thousand, four hundred one".