1245514505 has 16 divisors (see below), whose sum is σ = 1590969600. Its totient is φ = 933356160.

The previous prime is 1245514493. The next prime is 1245514511. The reversal of 1245514505 is 5054155421.

It is not a de Polignac number, because 1245514505 - 2¹⁶ = 1245448969 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 65201 + ... + 82110.

It is an arithmetic number, because the mean of its divisors is an integer number (99435600).

Almost surely, 2^1245514505 is an apocalyptic number.

It is an amenable number.

1245514505 is a deficient number, since it is larger than the sum of its proper divisors (345455095).

1245514505 is a wasteful number, since it uses less digits than its factorization.

1245514505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147424.

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 1245514505 is about 35291.8475713585. The cubic root of 1245514505 is about 1075.9273065897.

Adding to 1245514505 its reverse (5054155421), we get a palindrome (6299669926).

The spelling of 1245514505 in words is "one billion, two hundred forty-five million, five hundred fourteen thousand, five hundred five".