1005493141 has 2 divisors, whose sum is σ = 1005493142. Its totient is φ = 1005493140.

The previous prime is 1005493121. The next prime is 1005493147. The reversal of 1005493141 is 1413945001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 654080625 + 351412516 = 25575^2 + 18746^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005493141 - 2⁵ = 1005493109 is a prime.

It is a super-2 number, since 2×1005493141² = 2022032913196091762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005493147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502746570 + 502746571.

It is an arithmetic number, because the mean of its divisors is an integer number (502746571).

Almost surely, 2^1005493141 is an apocalyptic number.

It is an amenable number.

1005493141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005493141 is an equidigital number, since it uses as much as digits as its factorization.

1005493141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1005493141 is about 31709.5118379328. The cubic root of 1005493141 is about 1001.8277044613.

The spelling of 1005493141 in words is "one billion, five million, four hundred ninety-three thousand, one hundred forty-one".