1040200181 has 2 divisors, whose sum is σ = 1040200182. Its totient is φ = 1040200180.

The previous prime is 1040200171. The next prime is 1040200223. The reversal of 1040200181 is 1810020401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 617075281 + 423124900 = 24841^2 + 20570^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040200181 - 2¹⁰ = 1040199157 is a prime.

It is a super-2 number, since 2×1040200181² = 2164032833104865522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040200171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520100090 + 520100091.

It is an arithmetic number, because the mean of its divisors is an integer number (520100091).

Almost surely, 2^1040200181 is an apocalyptic number.

It is an amenable number.

1040200181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040200181 is an equidigital number, since it uses as much as digits as its factorization.

1040200181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1040200181 is about 32252.1345185090. The cubic root of 1040200181 is about 1013.2244045417.

Adding to 1040200181 its reverse (1810020401), we get a palindrome (2850220582).

The spelling of 1040200181 in words is "one billion, forty million, two hundred thousand, one hundred eighty-one".