2231245505 has 4 divisors (see below), whose sum is σ = 2677494612. Its totient is φ = 1784996400.

The previous prime is 2231245483. The next prime is 2231245537. The reversal of 2231245505 is 5055421322.

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 512977201 + 1718268304 = 22649^2 + 41452^2 .

It is not a de Polignac number, because 2231245505 - 2⁶ = 2231245441 is a prime.

It is a super-3 number, since 3×2231245505³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian 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, 223124546 + ... + 223124555.

It is an arithmetic number, because the mean of its divisors is an integer number (669373653).

Almost surely, 2^2231245505 is an apocalyptic number.

It is an amenable number.

2231245505 is a deficient number, since it is larger than the sum of its proper divisors (446249107).

2231245505 is an equidigital number, since it uses as much as digits as its factorization.

2231245505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446249106.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2231245505 is about 47236.0614890784. The cubic root of 2231245505 is about 1306.7197430529.

Adding to 2231245505 its reverse (5055421322), we get a palindrome (7286666827).

The spelling of 2231245505 in words is "two billion, two hundred thirty-one million, two hundred forty-five thousand, five hundred five".