1245244145 has 8 divisors (see below), whose sum is σ = 1495139904. Its totient is φ = 995630704.

The previous prime is 1245244093. The next prime is 1245244151. The reversal of 1245244145 is 5414425421.

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 1245244145 - 2⁸ = 1245243889 is a prime.

It is a Duffinian number.

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, 60749 + ... + 78618.

It is an arithmetic number, because the mean of its divisors is an integer number (186892488).

Almost surely, 2^1245244145 is an apocalyptic number.

It is an amenable number.

1245244145 is a deficient number, since it is larger than the sum of its proper divisors (249895759).

1245244145 is a wasteful number, since it uses less digits than its factorization.

1245244145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141159.

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

The square root of 1245244145 is about 35288.0170171122. The cubic root of 1245244145 is about 1075.8494515466.

Adding to 1245244145 its reverse (5414425421), we get a palindrome (6659669566).

The spelling of 1245244145 in words is "one billion, two hundred forty-five million, two hundred forty-four thousand, one hundred forty-five".