2103670445 has 4 divisors (see below), whose sum is σ = 2524404540. Its totient is φ = 1682936352.

The previous prime is 2103670421. The next prime is 2103670451. The reversal of 2103670445 is 5440763012.

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 1650065641 + 453604804 = 40621^2 + 21298^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103670445 - 2²⁴ = 2086893229 is a prime.

It is a congruent number.

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, 210367040 + ... + 210367049.

It is an arithmetic number, because the mean of its divisors is an integer number (631101135).

Almost surely, 2^2103670445 is an apocalyptic number.

It is an amenable number.

2103670445 is a deficient number, since it is larger than the sum of its proper divisors (420734095).

2103670445 is an equidigital number, since it uses as much as digits as its factorization.

2103670445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420734094.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 2103670445 is about 45865.7873038281. The cubic root of 2103670445 is about 1281.3248093698.

The spelling of 2103670445 in words is "two billion, one hundred three million, six hundred seventy thousand, four hundred forty-five".