1010545391 has 2 divisors, whose sum is σ = 1010545392. Its totient is φ = 1010545390.

The previous prime is 1010545373. The next prime is 1010545421. The reversal of 1010545391 is 1935450101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010545391 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010545301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505272695 + 505272696.

It is an arithmetic number, because the mean of its divisors is an integer number (505272696).

Almost surely, 2^1010545391 is an apocalyptic number.

1010545391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010545391 is an equidigital number, since it uses as much as digits as its factorization.

1010545391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 1010545391 is about 31789.0765987312. The cubic root of 1010545391 is about 1003.5028460761.

Adding to 1010545391 its reverse (1935450101), we get a palindrome (2945995492).

The spelling of 1010545391 in words is "one billion, ten million, five hundred forty-five thousand, three hundred ninety-one".