1277048431 has 2 divisors, whose sum is σ = 1277048432. Its totient is φ = 1277048430.

The previous prime is 1277048419. The next prime is 1277048467. The reversal of 1277048431 is 1348407721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1277048431 - 2²³ = 1268659823 is a prime.

It is a super-2 number, since 2×1277048431² = 3261705390239123522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1277048401) 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 as a sum of consecutive naturals, namely, 638524215 + 638524216.

It is an arithmetic number, because the mean of its divisors is an integer number (638524216).

Almost surely, 2^1277048431 is an apocalyptic number.

1277048431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1277048431 is an equidigital number, since it uses as much as digits as its factorization.

1277048431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 1277048431 is about 35735.8144023611. The cubic root of 1277048431 is about 1084.9318427883.

The spelling of 1277048431 in words is "one billion, two hundred seventy-seven million, forty-eight thousand, four hundred thirty-one".