2007145787 has 4 divisors (see below), whose sum is σ = 2053823640. Its totient is φ = 1960467936.

The previous prime is 2007145741. The next prime is 2007145799. The reversal of 2007145787 is 7875417002.

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

It is a cyclic number.

It is not a de Polignac number, because 2007145787 - 2²⁰ = 2006097211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2007145717) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23338862 + ... + 23338947.

It is an arithmetic number, because the mean of its divisors is an integer number (513455910).

Almost surely, 2^2007145787 is an apocalyptic number.

2007145787 is a deficient number, since it is larger than the sum of its proper divisors (46677853).

2007145787 is an equidigital number, since it uses as much as digits as its factorization.

2007145787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46677852.

The product of its (nonzero) digits is 109760, while the sum is 41.

The square root of 2007145787 is about 44801.1806429250. The cubic root of 2007145787 is about 1261.4197876094.

The spelling of 2007145787 in words is "two billion, seven million, one hundred forty-five thousand, seven hundred eighty-seven".