3601561003 has 8 divisors (see below), whose sum is σ = 3637918400. Its totient is φ = 3565373760.

The previous prime is 3601560971. The next prime is 3601561031. The reversal of 3601561003 is 3001651063.

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 3601561003 - 2⁵ = 3601560971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3601564003) 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, 223 + ... + 84871.

It is an arithmetic number, because the mean of its divisors is an integer number (454739800).

Almost surely, 2^3601561003 is an apocalyptic number.

3601561003 is a deficient number, since it is larger than the sum of its proper divisors (36357397).

3601561003 is a wasteful number, since it uses less digits than its factorization.

3601561003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85077.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 3601561003 is about 60013.0069484941. The cubic root of 3601561003 is about 1532.8403533922.

The spelling of 3601561003 in words is "three billion, six hundred one million, five hundred sixty-one thousand, three".