1042286521 has 2 divisors, whose sum is σ = 1042286522. Its totient is φ = 1042286520.

The previous prime is 1042286519. The next prime is 1042286537. The reversal of 1042286521 is 1256822401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 872375296 + 169911225 = 29536^2 + 13035^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042286521 - 2¹ = 1042286519 is a prime.

It is a super-2 number, since 2×1042286521² = 2172722383716566882, which contains 22 as substring.

Together with 1042286519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1042286551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521143260 + 521143261.

It is an arithmetic number, because the mean of its divisors is an integer number (521143261).

Almost surely, 2^1042286521 is an apocalyptic number.

It is an amenable number.

1042286521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042286521 is an equidigital number, since it uses as much as digits as its factorization.

1042286521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 1042286521 is about 32284.4625323080. The cubic root of 1042286521 is about 1013.9013636197.

The spelling of 1042286521 in words is "one billion, forty-two million, two hundred eighty-six thousand, five hundred twenty-one".