1601043845 has 8 divisors (see below), whose sum is σ = 1939906176. Its totient is φ = 1268399376.

The previous prime is 1601043827. The next prime is 1601043853. The reversal of 1601043845 is 5483401061.

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 1601043845 - 2⁶ = 1601043781 is a prime.

It is a super-2 number, since 2×1601043845² = 5126682787224768050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1553897 + ... + 1554926.

It is an arithmetic number, because the mean of its divisors is an integer number (242488272).

Almost surely, 2^1601043845 is an apocalyptic number.

It is an amenable number.

1601043845 is a deficient number, since it is larger than the sum of its proper divisors (338862331).

1601043845 is a wasteful number, since it uses less digits than its factorization.

1601043845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108931.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1601043845 is about 40013.0459350447. The cubic root of 1601043845 is about 1169.8613917666.

The spelling of 1601043845 in words is "one billion, six hundred one million, forty-three thousand, eight hundred forty-five".