1272285503 has 8 divisors (see below), whose sum is σ = 1343599488. Its totient is φ = 1202304664.

The previous prime is 1272285463. The next prime is 1272285541. The reversal of 1272285503 is 3055822721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1272285503 - 2¹⁶ = 1272219967 is a prime.

It is a super-2 number, since 2×1272285503² = 3237420802287926018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272285103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331325 + ... + 335142.

It is an arithmetic number, because the mean of its divisors is an integer number (167949936).

Almost surely, 2^1272285503 is an apocalyptic number.

1272285503 is a deficient number, since it is larger than the sum of its proper divisors (71313985).

1272285503 is an equidigital number, since it uses as much as digits as its factorization.

1272285503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666573.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 1272285503 is about 35669.1113289916. Note that the first 3 decimals coincide. The cubic root of 1272285503 is about 1083.5813615504.

The spelling of 1272285503 in words is "one billion, two hundred seventy-two million, two hundred eighty-five thousand, five hundred three".