1153244101 has 4 divisors (see below), whose sum is σ = 1172149804. Its totient is φ = 1134338400.

The previous prime is 1153244093. The next prime is 1153244117. The reversal of 1153244101 is 1014423511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47748100 + 1105496001 = 6910^2 + 33249^2 .

It is a cyclic number.

It is not a de Polignac number, because 1153244101 - 2³ = 1153244093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153244161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9452760 + ... + 9452881.

It is an arithmetic number, because the mean of its divisors is an integer number (293037451).

Almost surely, 2^1153244101 is an apocalyptic number.

It is an amenable number.

1153244101 is a deficient number, since it is larger than the sum of its proper divisors (18905703).

1153244101 is an equidigital number, since it uses as much as digits as its factorization.

1153244101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18905702.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1153244101 is about 33959.4478900939. The cubic root of 1153244101 is about 1048.6737907832.

Adding to 1153244101 its reverse (1014423511), we get a palindrome (2167667612).

The spelling of 1153244101 in words is "one billion, one hundred fifty-three million, two hundred forty-four thousand, one hundred one".