1245152545 has 32 divisors (see below), whose sum is σ = 1842382080. Its totient is φ = 786689280.

The previous prime is 1245152509. The next prime is 1245152549. The reversal of 1245152545 is 5452515421.

It is not a de Polignac number, because 1245152545 - 2²³ = 1236763937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1245152545.

It is not an unprimeable number, because it can be changed into a prime (1245152549) 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 31 ways as a sum of consecutive naturals, for example, 279435 + ... + 283855.

It is an arithmetic number, because the mean of its divisors is an integer number (57574440).

Almost surely, 2^1245152545 is an apocalyptic number.

It is an amenable number.

1245152545 is a deficient number, since it is larger than the sum of its proper divisors (597229535).

1245152545 is a wasteful number, since it uses less digits than its factorization.

1245152545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065.

The product of its digits is 40000, while the sum is 34.

The square root of 1245152545 is about 35286.7191022345. The cubic root of 1245152545 is about 1075.8230711170.

Adding to 1245152545 its reverse (5452515421), we get a palindrome (6697667966).

The spelling of 1245152545 in words is "one billion, two hundred forty-five million, one hundred fifty-two thousand, five hundred forty-five".