1045666537 has 2 divisors, whose sum is σ = 1045666538. Its totient is φ = 1045666536.

The previous prime is 1045666507. The next prime is 1045666591. The reversal of 1045666537 is 7356665401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 734355801 + 311310736 = 27099^2 + 17644^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045666537 - 2⁷ = 1045666409 is a prime.

It is a super-3 number, since 3×1045666537³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1045666493 and 1045666502.

It is not a weakly prime, because it can be changed into another prime (1045666507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522833268 + 522833269.

It is an arithmetic number, because the mean of its divisors is an integer number (522833269).

Almost surely, 2^1045666537 is an apocalyptic number.

It is an amenable number.

1045666537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045666537 is an equidigital number, since it uses as much as digits as its factorization.

1045666537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 1045666537 is about 32336.7675719142. The cubic root of 1045666537 is about 1014.9961697543.

The spelling of 1045666537 in words is "one billion, forty-five million, six hundred sixty-six thousand, five hundred thirty-seven".