2045045531 has 2 divisors, whose sum is σ = 2045045532. Its totient is φ = 2045045530.

The previous prime is 2045045501. The next prime is 2045045573. The reversal of 2045045531 is 1355405402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2045045531 is a prime.

It is a super-2 number, since 2×2045045531² = 8364422447726143922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2045045494 and 2045045503.

It is not a weakly prime, because it can be changed into another prime (2045045501) by changing a digit.

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 as a sum of consecutive naturals, namely, 1022522765 + 1022522766.

It is an arithmetic number, because the mean of its divisors is an integer number (1022522766).

Almost surely, 2^2045045531 is an apocalyptic number.

2045045531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045045531 is an equidigital number, since it uses as much as digits as its factorization.

2045045531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2045045531 is about 45222.1796356611. The cubic root of 2045045531 is about 1269.3098800829.

The spelling of 2045045531 in words is "two billion, forty-five million, forty-five thousand, five hundred thirty-one".