1154245450 has 24 divisors (see below), whose sum is σ = 2171027340. Its totient is φ = 456508800.

The previous prime is 1154245441. The next prime is 1154245457. The reversal of 1154245450 is 545424511.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 525188889 + 629056561 = 22917^2 + 25081^2 .

It is not an unprimeable number, because it can be changed into a prime (1154245457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125241 + ... + 134140.

Almost surely, 2^1154245450 is an apocalyptic number.

1154245450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1154245450 is a deficient number, since it is larger than the sum of its proper divisors (1016781890).

1154245450 is a wasteful number, since it uses less digits than its factorization.

1154245450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259482 (or 259477 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 1154245450 is about 33974.1879961832. The cubic root of 1154245450 is about 1048.9772202336.

Adding to 1154245450 its reverse (545424511), we get a palindrome (1699669961).

The spelling of 1154245450 in words is "one billion, one hundred fifty-four million, two hundred forty-five thousand, four hundred fifty".