1042551241 has 2 divisors, whose sum is σ = 1042551242. Its totient is φ = 1042551240.

The previous prime is 1042551233. The next prime is 1042551253. The reversal of 1042551241 is 1421552401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 530841600 + 511709641 = 23040^2 + 22621^2 .

It is an emirp because it is prime and its reverse (1421552401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1042551241 - 2³ = 1042551233 is a prime.

It is a super-2 number, since 2×1042551241² = 2173826180221280162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1042551941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521275620 + 521275621.

It is an arithmetic number, because the mean of its divisors is an integer number (521275621).

Almost surely, 2^1042551241 is an apocalyptic number.

It is an amenable number.

1042551241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042551241 is an equidigital number, since it uses as much as digits as its factorization.

1042551241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1042551241 is about 32288.5620769956. The cubic root of 1042551241 is about 1013.9871932657.

The spelling of 1042551241 in words is "one billion, forty-two million, five hundred fifty-one thousand, two hundred forty-one".