1127431797 has 8 divisors (see below), whose sum is σ = 1520133120. Its totient is φ = 743175840.

The previous prime is 1127431793. The next prime is 1127431841. The reversal of 1127431797 is 7971347211.

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

It is not a de Polignac number, because 1127431797 - 2² = 1127431793 is a prime.

It is a super-2 number, since 2×1127431797² = 2542204913773298418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127431793) 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 7 ways as a sum of consecutive naturals, for example, 2111029 + ... + 2111562.

It is an arithmetic number, because the mean of its divisors is an integer number (190016640).

Almost surely, 2^1127431797 is an apocalyptic number.

It is an amenable number.

1127431797 is a deficient number, since it is larger than the sum of its proper divisors (392701323).

1127431797 is an equidigital number, since it uses as much as digits as its factorization.

1127431797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4222683.

The product of its digits is 74088, while the sum is 42.

The square root of 1127431797 is about 33577.2511829066. The cubic root of 1127431797 is about 1040.7907561588.

It can be divided in two parts, 11274 and 31797, that added together give a triangular number (43071 = T₂₉₃).

The spelling of 1127431797 in words is "one billion, one hundred twenty-seven million, four hundred thirty-one thousand, seven hundred ninety-seven".