1241152357 has 4 divisors (see below), whose sum is σ = 1264570380. Its totient is φ = 1217734336.

The previous prime is 1241152327. The next prime is 1241152373. The reversal of 1241152357 is 7532511421.

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 450755361 + 790396996 = 21231^2 + 28114^2 .

It is a cyclic number.

It is not a de Polignac number, because 1241152357 - 2¹⁵ = 1241119589 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 (1241152307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11708932 + ... + 11709037.

It is an arithmetic number, because the mean of its divisors is an integer number (316142595).

Almost surely, 2^1241152357 is an apocalyptic number.

It is an amenable number.

1241152357 is a deficient number, since it is larger than the sum of its proper divisors (23418023).

1241152357 is an equidigital number, since it uses as much as digits as its factorization.

1241152357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23418022.

The product of its digits is 8400, while the sum is 31.

The square root of 1241152357 is about 35229.9922934990. The cubic root of 1241152357 is about 1074.6697689826.

Adding to 1241152357 its reverse (7532511421), we get a palindrome (8773663778).

The spelling of 1241152357 in words is "one billion, two hundred forty-one million, one hundred fifty-two thousand, three hundred fifty-seven".