1285455007 has 4 divisors (see below), whose sum is σ = 1307242440. Its totient is φ = 1263667576.

The previous prime is 1285454969. The next prime is 1285455019. The reversal of 1285455007 is 7005545821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1285455007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285455407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10893628 + ... + 10893745.

It is an arithmetic number, because the mean of its divisors is an integer number (326810610).

Almost surely, 2^1285455007 is an apocalyptic number.

1285455007 is a deficient number, since it is larger than the sum of its proper divisors (21787433).

1285455007 is an equidigital number, since it uses as much as digits as its factorization.

1285455007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21787432.

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 1285455007 is about 35853.2426288056. The cubic root of 1285455007 is about 1087.3072739372.

The spelling of 1285455007 in words is "one billion, two hundred eighty-five million, four hundred fifty-five thousand, seven".