1152623243 has 4 divisors (see below), whose sum is σ = 1171518768. Its totient is φ = 1133727720.

The previous prime is 1152623237. The next prime is 1152623257. The reversal of 1152623243 is 3423262511.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1152623243 - 2⁶ = 1152623179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1152623203) 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, 9447671 + ... + 9447792.

It is an arithmetic number, because the mean of its divisors is an integer number (292879692).

Almost surely, 2^1152623243 is an apocalyptic number.

1152623243 is a deficient number, since it is larger than the sum of its proper divisors (18895525).

1152623243 is an equidigital number, since it uses as much as digits as its factorization.

1152623243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18895524.

The product of its digits is 8640, while the sum is 29.

The square root of 1152623243 is about 33950.3054919982. The cubic root of 1152623243 is about 1048.4855697510.

Adding to 1152623243 its reverse (3423262511), we get a palindrome (4575885754).

The spelling of 1152623243 in words is "one billion, one hundred fifty-two million, six hundred twenty-three thousand, two hundred forty-three".