1285214503 has 4 divisors (see below), whose sum is σ = 1286522928. Its totient is φ = 1283906080.

The previous prime is 1285214479. The next prime is 1285214507. The reversal of 1285214503 is 3054125821.

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

It is a cyclic number.

It is not a de Polignac number, because 1285214503 - 2²⁹ = 748343591 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 (1285214507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652738 + ... + 654703.

It is an arithmetic number, because the mean of its divisors is an integer number (321630732).

Almost surely, 2^1285214503 is an apocalyptic number.

1285214503 is a deficient number, since it is larger than the sum of its proper divisors (1308425).

1285214503 is an equidigital number, since it uses as much as digits as its factorization.

1285214503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308424.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 1285214503 is about 35849.8884656563. Note that the first 3 decimals coincide. The cubic root of 1285214503 is about 1087.2394592834.

The spelling of 1285214503 in words is "one billion, two hundred eighty-five million, two hundred fourteen thousand, five hundred three".