4012003045 has 16 divisors (see below), whose sum is σ = 5288135040. Its totient is φ = 2908471104.

The previous prime is 4012003027. The next prime is 4012003067. The reversal of 4012003045 is 5403002104.

It is a cyclic number.

It is not a de Polignac number, because 4012003045 - 2²³ = 4003614437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 915894 + ... + 920263.

It is an arithmetic number, because the mean of its divisors is an integer number (330508440).

Almost surely, 2^4012003045 is an apocalyptic number.

It is an amenable number.

4012003045 is a deficient number, since it is larger than the sum of its proper divisors (1276131995).

4012003045 is a wasteful number, since it uses less digits than its factorization.

4012003045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836204.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 4012003045 is about 63340.3745252584. The cubic root of 4012003045 is about 1588.9872702588.

Adding to 4012003045 its reverse (5403002104), we get a palindrome (9415005149).

The spelling of 4012003045 in words is "four billion, twelve million, three thousand, forty-five".