1042549181 has 2 divisors, whose sum is σ = 1042549182. Its totient is φ = 1042549180.

The previous prime is 1042549153. The next prime is 1042549201. The reversal of 1042549181 is 1819452401.

1042549181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 915062500 + 127486681 = 30250^2 + 11291^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042549181 - 2⁶ = 1042549117 is a prime.

It is a super-2 number, since 2×1042549181² = 2173817589607541522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042543181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521274590 + 521274591.

It is an arithmetic number, because the mean of its divisors is an integer number (521274591).

Almost surely, 2^1042549181 is an apocalyptic number.

It is an amenable number.

1042549181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042549181 is an equidigital number, since it uses as much as digits as its factorization.

1042549181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 1042549181 is about 32288.5301771388. The cubic root of 1042549181 is about 1013.9865254120.

The spelling of 1042549181 in words is "one billion, forty-two million, five hundred forty-nine thousand, one hundred eighty-one".