1202543545 has 24 divisors (see below), whose sum is σ = 1682053128. Its totient is φ = 822931200.

The previous prime is 1202543521. The next prime is 1202543561. The reversal of 1202543545 is 5453452021.

It can be written as a sum of positive squares in 4 ways, for example, as 17875984 + 1184667561 = 4228^2 + 34419^2 .

It is not a de Polignac number, because 1202543545 - 2⁵ = 1202543513 is a prime.

It is a super-2 number, since 2×1202543545² = 2892221955242334050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122935 + ... + 132355.

It is an arithmetic number, because the mean of its divisors is an integer number (70085547).

Almost surely, 2^1202543545 is an apocalyptic number.

It is an amenable number.

1202543545 is a deficient number, since it is larger than the sum of its proper divisors (479509583).

1202543545 is an equidigital number, since it uses as much as digits as its factorization.

1202543545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9961 (or 9954 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 1202543545 is about 34677.7096273673. The cubic root of 1202543545 is about 1063.4088504088.

Adding to 1202543545 its reverse (5453452021), we get a palindrome (6655995566).

The spelling of 1202543545 in words is "one billion, two hundred two million, five hundred forty-three thousand, five hundred forty-five".