1153242455 has 8 divisors (see below), whose sum is σ = 1421293632. Its totient is φ = 897658848.

The previous prime is 1153242451. The next prime is 1153242457. The reversal of 1153242455 is 5542423511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1153242455 - 2² = 1153242451 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 (1153242451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3116687 + ... + 3117056.

It is an arithmetic number, because the mean of its divisors is an integer number (177661704).

Almost surely, 2^1153242455 is an apocalyptic number.

1153242455 is a deficient number, since it is larger than the sum of its proper divisors (268051177).

1153242455 is an equidigital number, since it uses as much as digits as its factorization.

1153242455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6233785.

The product of its digits is 24000, while the sum is 32.

The square root of 1153242455 is about 33959.4236552978. The cubic root of 1153242455 is about 1048.6732918666.

Adding to 1153242455 its reverse (5542423511), we get a palindrome (6695665966).

The spelling of 1153242455 in words is "one billion, one hundred fifty-three million, two hundred forty-two thousand, four hundred fifty-five".