1151601255 has 24 divisors (see below), whose sum is σ = 2281267872. Its totient is φ = 526446144.

The previous prime is 1151601251. The next prime is 1151601263. The reversal of 1151601255 is 5521061511.

1151601255 is a `hidden beast` number, since 1 + 1 + 5 + 1 + 601 + 2 + 55 = 666.

It is not a de Polignac number, because 1151601255 - 2² = 1151601251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151601251) 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, 1827624 + ... + 1828253.

It is an arithmetic number, because the mean of its divisors is an integer number (95052828).

Almost surely, 2^1151601255 is an apocalyptic number.

1151601255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1151601255 is a deficient number, since it is larger than the sum of its proper divisors (1129666617).

1151601255 is a wasteful number, since it uses less digits than its factorization.

1151601255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3655895 (or 3655892 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

The square root of 1151601255 is about 33935.2509199505. The cubic root of 1151601255 is about 1048.1755937807.

Adding to 1151601255 its reverse (5521061511), we get a palindrome (6672662766).

The spelling of 1151601255 in words is "one billion, one hundred fifty-one million, six hundred one thousand, two hundred fifty-five".