1145244254 has 32 divisors (see below), whose sum is σ = 2147924736. Its totient is φ = 444913920.

The previous prime is 1145244251. The next prime is 1145244293. The reversal of 1145244254 is 4524425411.

It is a super-3 number, since 3×1145244254³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145244254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145244251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43829 + ... + 64895.

It is an arithmetic number, because the mean of its divisors is an integer number (67122648).

Almost surely, 2^1145244254 is an apocalyptic number.

1145244254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1145244254 is a deficient number, since it is larger than the sum of its proper divisors (1002680482).

1145244254 is a wasteful number, since it uses less digits than its factorization.

1145244254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21440.

The product of its digits is 25600, while the sum is 32.

The square root of 1145244254 is about 33841.4576222715. The cubic root of 1145244254 is about 1046.2433417079.

Adding to 1145244254 its reverse (4524425411), we get a palindrome (5669669665).

It can be divided in two parts, 11 and 45244254, that multiplied together give a palindrome (497686794).

The spelling of 1145244254 in words is "one billion, one hundred forty-five million, two hundred forty-four thousand, two hundred fifty-four".