3601440145 has 8 divisors (see below), whose sum is σ = 4323007656. Its totient is φ = 2880299136.

The previous prime is 3601440127. The next prime is 3601440151. The reversal of 3601440145 is 5410441063.

It is a Cunningham number, because it is equal to 60012²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1191906576 + 2409533569 = 34524^2 + 49087^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3601440145 is a prime.

It is a super-2 number, since 2×3601440145² = 25940742236035242050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 87742 + ... + 122071.

It is an arithmetic number, because the mean of its divisors is an integer number (540375957).

Almost surely, 2^3601440145 is an apocalyptic number.

It is an amenable number.

3601440145 is a deficient number, since it is larger than the sum of its proper divisors (721567511).

3601440145 is a wasteful number, since it uses less digits than its factorization.

3601440145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213251.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 3601440145 is about 60012.0000083317. Note that the first 5 decimals coincide. The cubic root of 3601440145 is about 1532.8232072999.

The spelling of 3601440145 in words is "three billion, six hundred one million, four hundred forty thousand, one hundred forty-five".