2077845145 has 8 divisors (see below), whose sum is σ = 2640085704. Its totient is φ = 1564495104.

The previous prime is 2077845131. The next prime is 2077845163. The reversal of 2077845145 is 5415487702.

It can be written as a sum of positive squares in 4 ways, for example, as 191767104 + 1886078041 = 13848^2 + 43429^2 .

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-2077845145 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12222534 + ... + 12222703.

It is an arithmetic number, because the mean of its divisors is an integer number (330010713).

Almost surely, 2^2077845145 is an apocalyptic number.

It is an amenable number.

2077845145 is a deficient number, since it is larger than the sum of its proper divisors (562240559).

2077845145 is a wasteful number, since it uses less digits than its factorization.

2077845145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24445259.

The product of its (nonzero) digits is 313600, while the sum is 43.

The square root of 2077845145 is about 45583.3867214800. The cubic root of 2077845145 is about 1276.0598942759.

The spelling of 2077845145 in words is "two billion, seventy-seven million, eight hundred forty-five thousand, one hundred forty-five".