1127782631 has 2 divisors, whose sum is σ = 1127782632. Its totient is φ = 1127782630.

The previous prime is 1127782627. The next prime is 1127782633. The reversal of 1127782631 is 1362877211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1127782631 - 2² = 1127782627 is a prime.

It is a super-2 number, since 2×1127782631² = 2543787325570564322, which contains 22 as substring.

Together with 1127782633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1127782633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563891315 + 563891316.

It is an arithmetic number, because the mean of its divisors is an integer number (563891316).

Almost surely, 2^1127782631 is an apocalyptic number.

1127782631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1127782631 is an equidigital number, since it uses as much as digits as its factorization.

1127782631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 38.

The square root of 1127782631 is about 33582.4750576845. The cubic root of 1127782631 is about 1040.8987026488.

The spelling of 1127782631 in words is "one billion, one hundred twenty-seven million, seven hundred eighty-two thousand, six hundred thirty-one".