2391045259 has 4 divisors (see below), whose sum is σ = 2391194520. Its totient is φ = 2390896000.

The previous prime is 2391045199. The next prime is 2391045263. The reversal of 2391045259 is 9525401932.

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 2391045259 - 2¹¹ = 2391043211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2391045289) 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, 47254 + ... + 83755.

It is an arithmetic number, because the mean of its divisors is an integer number (597798630).

Almost surely, 2^2391045259 is an apocalyptic number.

2391045259 is a deficient number, since it is larger than the sum of its proper divisors (149261).

2391045259 is a wasteful number, since it uses less digits than its factorization.

2391045259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149260.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 2391045259 is about 48898.3155026837. The cubic root of 2391045259 is about 1337.1986585687.

It can be divided in two parts, 23910 and 45259, that added together give a square (69169 = 263²).

The spelling of 2391045259 in words is "two billion, three hundred ninety-one million, forty-five thousand, two hundred fifty-nine".