1141391895 has 16 divisors (see below), whose sum is σ = 2087116800. Its totient is φ = 521779104.

The previous prime is 1141391891. The next prime is 1141391963. The reversal of 1141391895 is 5981931411.

It is a happy number.

It is not a de Polignac number, because 1141391895 - 2² = 1141391891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141391891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5435095 + ... + 5435304.

It is an arithmetic number, because the mean of its divisors is an integer number (130444800).

Almost surely, 2^1141391895 is an apocalyptic number.

1141391895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1141391895 is a deficient number, since it is larger than the sum of its proper divisors (945724905).

1141391895 is a wasteful number, since it uses less digits than its factorization.

1141391895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10870414.

The product of its digits is 38880, while the sum is 42.

The square root of 1141391895 is about 33784.4919304701. The cubic root of 1141391895 is about 1045.0689102395.

The spelling of 1141391895 in words is "one billion, one hundred forty-one million, three hundred ninety-one thousand, eight hundred ninety-five".