1162112391 has 24 divisors (see below), whose sum is σ = 1880705424. Its totient is φ = 685272960.

The previous prime is 1162112383. The next prime is 1162112411. The reversal of 1162112391 is 1932112611.

It is a happy number.

1162112391 is a `hidden beast` number, since 1 + 1 + 621 + 1 + 2 + 39 + 1 = 666.

It is not a de Polignac number, because 1162112391 - 2³ = 1162112383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1162112351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154966 + ... + 162291.

It is an arithmetic number, because the mean of its divisors is an integer number (78362726).

Almost surely, 2^1162112391 is an apocalyptic number.

1162112391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1162112391 is a deficient number, since it is larger than the sum of its proper divisors (718593033).

1162112391 is a wasteful number, since it uses less digits than its factorization.

1162112391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317311 (or 317308 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The square root of 1162112391 is about 34089.7695944106. The cubic root of 1162112391 is about 1051.3549826701.

The spelling of 1162112391 in words is "one billion, one hundred sixty-two million, one hundred twelve thousand, three hundred ninety-one".