1146131505 has 16 divisors (see below), whose sum is σ = 2037567360. Its totient is φ = 611270064.

The previous prime is 1146131477. The next prime is 1146131513. The reversal of 1146131505 is 5051316411.

1146131505 is a `hidden beast` number, since 1 + 146 + 13 + 1 + 505 = 666.

It is not a de Polignac number, because 1146131505 - 2¹⁴ = 1146115121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4244797 + ... + 4245066.

It is an arithmetic number, because the mean of its divisors is an integer number (127347960).

Almost surely, 2^1146131505 is an apocalyptic number.

1146131505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1146131505 is a deficient number, since it is larger than the sum of its proper divisors (891435855).

1146131505 is an equidigital number, since it uses as much as digits as its factorization.

1146131505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8489877 (or 8489871 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1146131505 is about 33854.5640202322. The cubic root of 1146131505 is about 1046.5134560903.

Adding to 1146131505 its reverse (5051316411), we get a palindrome (6197447916).

It can be divided in two parts, 1146 and 131505, that added together give a cube (132651 = 51³).

The spelling of 1146131505 in words is "one billion, one hundred forty-six million, one hundred thirty-one thousand, five hundred five".