2631003145 has 4 divisors (see below), whose sum is σ = 3157203780. Its totient is φ = 2104802512.

The previous prime is 2631003121. The next prime is 2631003187. The reversal of 2631003145 is 5413001362.

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 868598784 + 1762404361 = 29472^2 + 41981^2 .

It is a cyclic number.

It is not a de Polignac number, because 2631003145 - 2¹⁷ = 2630872073 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263100310 + ... + 263100319.

It is an arithmetic number, because the mean of its divisors is an integer number (789300945).

Almost surely, 2^2631003145 is an apocalyptic number.

It is an amenable number.

2631003145 is a deficient number, since it is larger than the sum of its proper divisors (526200635).

2631003145 is an equidigital number, since it uses as much as digits as its factorization.

2631003145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526200634.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2631003145 is about 51293.3050699602. The cubic root of 2631003145 is about 1380.5128572344.

The spelling of 2631003145 in words is "two billion, six hundred thirty-one million, three thousand, one hundred forty-five".