1153105251 has 16 divisors (see below), whose sum is σ = 1573017600. Its totient is φ = 751166208.

The previous prime is 1153105241. The next prime is 1153105267. The reversal of 1153105251 is 1525013511.

It is not a de Polignac number, because 1153105251 - 2⁷ = 1153105123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1153105241) 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, 2091 + ... + 48068.

It is an arithmetic number, because the mean of its divisors is an integer number (98313600).

Almost surely, 2^1153105251 is an apocalyptic number.

1153105251 is a deficient number, since it is larger than the sum of its proper divisors (419912349).

1153105251 is an equidigital number, since it uses as much as digits as its factorization.

1153105251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50338.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 1153105251 is about 33957.4034784758. The cubic root of 1153105251 is about 1048.6317024979.

Adding to 1153105251 its reverse (1525013511), we get a palindrome (2678118762).

The spelling of 1153105251 in words is "one billion, one hundred fifty-three million, one hundred five thousand, two hundred fifty-one".