1613954845 has 8 divisors (see below), whose sum is σ = 1940226264. Its totient is φ = 1288843584.

The previous prime is 1613954843. The next prime is 1613954861. The reversal of 1613954845 is 5484593161.

1613954845 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 44368921 + 1569585924 = 6661^2 + 39618^2 .

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 1613954845 - 2¹ = 1613954843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1613954795 and 1613954804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613954843) 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, 286974 + ... + 292543.

It is an arithmetic number, because the mean of its divisors is an integer number (242528283).

Almost surely, 2^1613954845 is an apocalyptic number.

It is an amenable number.

1613954845 is a deficient number, since it is larger than the sum of its proper divisors (326271419).

1613954845 is an equidigital number, since it uses as much as digits as its factorization.

1613954845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580079.

The product of its digits is 518400, while the sum is 46.

The square root of 1613954845 is about 40174.0568650964. The cubic root of 1613954845 is about 1172.9976083989.

The spelling of 1613954845 in words is "one billion, six hundred thirteen million, nine hundred fifty-four thousand, eight hundred forty-five".