1285051 has 2 divisors, whose sum is σ = 1285052. Its totient is φ = 1285050.

The previous prime is 1285049. The next prime is 1285057. The reversal of 1285051 is 1505821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1285051 - 2¹ = 1285049 is a prime.

Together with 1285049, it forms a pair of twin primes.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (1285057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642525 + 642526.

It is an arithmetic number, because the mean of its divisors is an integer number (642526).

2^1285051 is an apocalyptic number.

1285051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1285051 is an equidigital number, since it uses as much as digits as its factorization.

1285051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1285051 is about 1133.6008997879. The cubic root of 1285051 is about 108.7193351688.

The spelling of 1285051 in words is "one million, two hundred eighty-five thousand, fifty-one".