2145435549 has 8 divisors (see below), whose sum is σ = 2861471520. Its totient is φ = 1429844976.

The previous prime is 2145435527. The next prime is 2145435563. The reversal of 2145435549 is 9455345412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2145435549 - 2¹⁹ = 2144911261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2145435549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145435599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99942 + ... + 119495.

It is an arithmetic number, because the mean of its divisors is an integer number (357683940).

Almost surely, 2^2145435549 is an apocalyptic number.

It is an amenable number.

2145435549 is a deficient number, since it is larger than the sum of its proper divisors (716035971).

2145435549 is a wasteful number, since it uses less digits than its factorization.

2145435549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222699.

The product of its digits is 432000, while the sum is 42.

The square root of 2145435549 is about 46318.8465853803. The cubic root of 2145435549 is about 1289.7488742579.

The spelling of 2145435549 in words is "two billion, one hundred forty-five million, four hundred thirty-five thousand, five hundred forty-nine".