1127995797 has 4 divisors (see below), whose sum is σ = 1503994400. Its totient is φ = 751997196.

The previous prime is 1127995793. The next prime is 1127995829. The reversal of 1127995797 is 7975997211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1127995797 - 2² = 1127995793 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 (1127995793) 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 3 ways as a sum of consecutive naturals, for example, 187999297 + ... + 187999302.

It is an arithmetic number, because the mean of its divisors is an integer number (375998600).

Almost surely, 2^1127995797 is an apocalyptic number.

It is an amenable number.

1127995797 is a deficient number, since it is larger than the sum of its proper divisors (375998603).

1127995797 is an equidigital number, since it uses as much as digits as its factorization.

1127995797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375998602.

The product of its digits is 2500470, while the sum is 57.

The square root of 1127995797 is about 33585.6486761831. The cubic root of 1127995797 is about 1040.9642797758.

The spelling of 1127995797 in words is "one billion, one hundred twenty-seven million, nine hundred ninety-five thousand, seven hundred ninety-seven".