1201051601 has 8 divisors (see below), whose sum is σ = 1217832000. Its totient is φ = 1184387760.

The previous prime is 1201051597. The next prime is 1201051609. The reversal of 1201051601 is 1061501021.

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 1201051601 - 2² = 1201051597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201051601.

It is not an unprimeable number, because it can be changed into a prime (1201051609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8285 + ... + 49706.

It is an arithmetic number, because the mean of its divisors is an integer number (152229000).

Almost surely, 2^1201051601 is an apocalyptic number.

It is an amenable number.

1201051601 is a deficient number, since it is larger than the sum of its proper divisors (16780399).

1201051601 is a wasteful number, since it uses less digits than its factorization.

1201051601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58279.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 1201051601 is about 34656.1913804734. The cubic root of 1201051601 is about 1062.9688932216.

Adding to 1201051601 its reverse (1061501021), we get a palindrome (2262552622).

The spelling of 1201051601 in words is "one billion, two hundred one million, fifty-one thousand, six hundred one".