1154212253 has 8 divisors (see below), whose sum is σ = 1168428600. Its totient is φ = 1140023808.

The previous prime is 1154212249. The next prime is 1154212261. The reversal of 1154212253 is 3522124511.

It can be written as a sum of positive squares in 4 ways, for example, as 47524 + 1154164729 = 218^2 + 33973^2 .

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 1154212253 - 2² = 1154212249 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 (1154212223) 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, 83375 + ... + 96227.

It is an arithmetic number, because the mean of its divisors is an integer number (146053575).

Almost surely, 2^1154212253 is an apocalyptic number.

It is an amenable number.

1154212253 is a deficient number, since it is larger than the sum of its proper divisors (14216347).

1154212253 is a wasteful number, since it uses less digits than its factorization.

1154212253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13951.

The product of its digits is 2400, while the sum is 26.

The square root of 1154212253 is about 33973.6994305890. The cubic root of 1154212253 is about 1048.9671636694.

Adding to 1154212253 its reverse (3522124511), we get a palindrome (4676336764).

The spelling of 1154212253 in words is "one billion, one hundred fifty-four million, two hundred twelve thousand, two hundred fifty-three".