1201548663 has 24 divisors (see below), whose sum is σ = 2002777088. Its totient is φ = 679929552.

The previous prime is 1201548653. The next prime is 1201548679. The reversal of 1201548663 is 3668451021.

It is a happy number.

It is not a de Polignac number, because 1201548663 - 2⁵ = 1201548631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201548653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86095 + ... + 99072.

Almost surely, 2^1201548663 is an apocalyptic number.

1201548663 is a deficient number, since it is larger than the sum of its proper divisors (801228425).

1201548663 is a wasteful number, since it uses less digits than its factorization.

1201548663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185283 (or 185280 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 1201548663 is about 34663.3619690878. The cubic root of 1201548663 is about 1063.1155115606.

Adding to 1201548663 its reverse (3668451021), we get a palindrome (4869999684).

The spelling of 1201548663 in words is "one billion, two hundred one million, five hundred forty-eight thousand, six hundred sixty-three".