1131401395 has 12 divisors (see below), whose sum is σ = 1419281136. Its totient is φ = 865766000.

The previous prime is 1131401393. The next prime is 1131401407. The reversal of 1131401395 is 5931041311.

It is not a de Polignac number, because 1131401395 - 2¹ = 1131401393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131401393) 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 11 ways as a sum of consecutive naturals, for example, 211231 + ... + 216520.

It is an arithmetic number, because the mean of its divisors is an integer number (118273428).

Almost surely, 2^1131401395 is an apocalyptic number.

1131401395 is a deficient number, since it is larger than the sum of its proper divisors (287879741).

1131401395 is an equidigital number, since it uses as much as digits as its factorization.

1131401395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427802 (or 427779 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 1131401395 is about 33636.3106627347. The cubic root of 1131401395 is about 1042.0108392593.

The spelling of 1131401395 in words is "one billion, one hundred thirty-one million, four hundred one thousand, three hundred ninety-five".