1154244145 has 8 divisors (see below), whose sum is σ = 1394389800. Its totient is φ = 917197440.

The previous prime is 1154244139. The next prime is 1154244181. The reversal of 1154244145 is 5414424511.

It can be written as a sum of positive squares in 4 ways, for example, as 15046641 + 1139197504 = 3879^2 + 33752^2 .

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

It is not a de Polignac number, because 1154244145 - 2³ = 1154244137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773916 + ... + 775405.

It is an arithmetic number, because the mean of its divisors is an integer number (174298725).

Almost surely, 2^1154244145 is an apocalyptic number.

It is an amenable number.

1154244145 is a deficient number, since it is larger than the sum of its proper divisors (240145655).

1154244145 is a wasteful number, since it uses less digits than its factorization.

1154244145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549475.

The product of its digits is 12800, while the sum is 31.

The square root of 1154244145 is about 33974.1687904208. The cubic root of 1154244145 is about 1048.9768249059.

Adding to 1154244145 its reverse (5414424511), we get a palindrome (6568668656).

The spelling of 1154244145 in words is "one billion, one hundred fifty-four million, two hundred forty-four thousand, one hundred forty-five".