2045161201 has 2 divisors, whose sum is σ = 2045161202. Its totient is φ = 2045161200.

The previous prime is 2045161187. The next prime is 2045161247. The reversal of 2045161201 is 1021615402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1833894976 + 211266225 = 42824^2 + 14535^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045161201 - 2²³ = 2036772593 is a prime.

It is not a weakly prime, because it can be changed into another prime (2045161301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022580600 + 1022580601.

It is an arithmetic number, because the mean of its divisors is an integer number (1022580601).

Almost surely, 2^2045161201 is an apocalyptic number.

It is an amenable number.

2045161201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045161201 is an equidigital number, since it uses as much as digits as its factorization.

2045161201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 2045161201 is about 45223.4585254158. The cubic root of 2045161201 is about 1269.3338108143. Note that the first 3 decimals are identical.

Adding to 2045161201 its reverse (1021615402), we get a palindrome (3066776603).

The spelling of 2045161201 in words is "two billion, forty-five million, one hundred sixty-one thousand, two hundred one".