2245142399 has 4 divisors (see below), whose sum is σ = 2283195720. Its totient is φ = 2207089080.

The previous prime is 2245142303. The next prime is 2245142423. The reversal of 2245142399 is 9932415422.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2245142399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245142299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19026572 + ... + 19026689.

It is an arithmetic number, because the mean of its divisors is an integer number (570798930).

Almost surely, 2^2245142399 is an apocalyptic number.

2245142399 is a deficient number, since it is larger than the sum of its proper divisors (38053321).

2245142399 is an equidigital number, since it uses as much as digits as its factorization.

2245142399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38053320.

The product of its digits is 155520, while the sum is 41.

The square root of 2245142399 is about 47382.9336259375. The cubic root of 2245142399 is about 1309.4270164772.

The spelling of 2245142399 in words is "two billion, two hundred forty-five million, one hundred forty-two thousand, three hundred ninety-nine".