1031545061 has 2 divisors, whose sum is σ = 1031545062. Its totient is φ = 1031545060.

The previous prime is 1031545033. The next prime is 1031545069. The reversal of 1031545061 is 1605451301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1000520161 + 31024900 = 31631^2 + 5570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031545061 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031545061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031545069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515772530 + 515772531.

It is an arithmetic number, because the mean of its divisors is an integer number (515772531).

Almost surely, 2^1031545061 is an apocalyptic number.

It is an amenable number.

1031545061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031545061 is an equidigital number, since it uses as much as digits as its factorization.

1031545061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1031545061 is about 32117.6752116339. The cubic root of 1031545061 is about 1010.4063525184.

Adding to 1031545061 its reverse (1605451301), we get a palindrome (2636996362).

The spelling of 1031545061 in words is "one billion, thirty-one million, five hundred forty-five thousand, sixty-one".