1272603431 has 16 divisors (see below), whose sum is σ = 1406434848. Its totient is φ = 1141862400.

The previous prime is 1272603421. The next prime is 1272603439. The reversal of 1272603431 is 1343062721.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1272603431 - 2²⁶ = 1205494567 is a prime.

It is a super-2 number, since 2×1272603431² = 3239038985185943522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1272603394 and 1272603403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272603439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447791 + ... + 450623.

It is an arithmetic number, because the mean of its divisors is an integer number (87902178).

Almost surely, 2^1272603431 is an apocalyptic number.

1272603431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1272603431 is a deficient number, since it is larger than the sum of its proper divisors (133831417).

1272603431 is a wasteful number, since it uses less digits than its factorization.

1272603431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1272603431 is about 35673.5676797261. The cubic root of 1272603431 is about 1083.6716117767.

The spelling of 1272603431 in words is "one billion, two hundred seventy-two million, six hundred three thousand, four hundred thirty-one".