2445031561 has 8 divisors (see below), whose sum is σ = 2795132864. Its totient is φ = 2095133040.

The previous prime is 2445031531. The next prime is 2445031577. The reversal of 2445031561 is 1651305442.

It is a happy number.

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

It is not a de Polignac number, because 2445031561 - 2⁹ = 2445031049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2445031531) 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, 23910 + ... + 73903.

It is an arithmetic number, because the mean of its divisors is an integer number (349391608).

Almost surely, 2^2445031561 is an apocalyptic number.

It is an amenable number.

2445031561 is a deficient number, since it is larger than the sum of its proper divisors (350101303).

2445031561 is an equidigital number, since it uses as much as digits as its factorization.

2445031561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101391.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 2445031561 is about 49447.2603993386. The cubic root of 2445031561 is about 1347.1878472825.

The spelling of 2445031561 in words is "two billion, four hundred forty-five million, thirty-one thousand, five hundred sixty-one".