2031457445 has 4 divisors (see below), whose sum is σ = 2437748940. Its totient is φ = 1625165952.

The previous prime is 2031457433. The next prime is 2031457469. The reversal of 2031457445 is 5447541302.

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 628655329 + 1402802116 = 25073^2 + 37454^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031457445 - 2⁸ = 2031457189 is a prime.

It is a super-3 number, since 3×2031457445³ (a number of 29 digits) contains 333 as substring.

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, 203145740 + ... + 203145749.

It is an arithmetic number, because the mean of its divisors is an integer number (609437235).

Almost surely, 2^2031457445 is an apocalyptic number.

It is an amenable number.

2031457445 is a deficient number, since it is larger than the sum of its proper divisors (406291495).

2031457445 is an equidigital number, since it uses as much as digits as its factorization.

2031457445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406291494.

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 2031457445 is about 45071.6922801885. The cubic root of 2031457445 is about 1266.4923660979.

Adding to 2031457445 its reverse (5447541302), we get a palindrome (7478998747).

The spelling of 2031457445 in words is "two billion, thirty-one million, four hundred fifty-seven thousand, four hundred forty-five".