4012503545 has 4 divisors (see below), whose sum is σ = 4815004260. Its totient is φ = 3210002832.

The previous prime is 4012503541. The next prime is 4012503587. The reversal of 4012503545 is 5453052104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1432168336 + 2580335209 = 37844^2 + 50797^2 .

It is a cyclic number.

It is not a de Polignac number, because 4012503545 - 2² = 4012503541 is a prime.

It is a super-2 number, since 2×4012503545² = 32200369397275134050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4012503541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401250350 + ... + 401250359.

It is an arithmetic number, because the mean of its divisors is an integer number (1203751065).

Almost surely, 2^4012503545 is an apocalyptic number.

It is an amenable number.

4012503545 is a deficient number, since it is larger than the sum of its proper divisors (802500715).

4012503545 is an equidigital number, since it uses as much as digits as its factorization.

4012503545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802500714.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 4012503545 is about 63344.3252785915. The cubic root of 4012503545 is about 1589.0533432446.

Adding to 4012503545 its reverse (5453052104), we get a palindrome (9465555649).

The spelling of 4012503545 in words is "four billion, twelve million, five hundred three thousand, five hundred forty-five".