1813232007 has 8 divisors (see below), whose sum is σ = 2686269680. Its totient is φ = 1208821320.

The previous prime is 1813231999. The next prime is 1813232039. The reversal of 1813232007 is 7002323181.

1813232007 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1813232007 - 2³ = 1813231999 is a prime.

It is a super-2 number, since 2×1813232007² = 6575620622418496098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 67156741 = 1813232007 / (1 + 8 + 1 + 3 + 2 + 3 + 2 + 0 + 0 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813230007) 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, 33578344 + ... + 33578397.

It is an arithmetic number, because the mean of its divisors is an integer number (335783710).

Almost surely, 2^1813232007 is an apocalyptic number.

1813232007 is a deficient number, since it is larger than the sum of its proper divisors (873037673).

1813232007 is an equidigital number, since it uses as much as digits as its factorization.

1813232007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67156750 (or 67156744 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1813232007 is about 42582.0620332083. The cubic root of 1813232007 is about 1219.4138559872.

Adding to 1813232007 its reverse (7002323181), we get a palindrome (8815555188).

The spelling of 1813232007 in words is "one billion, eight hundred thirteen million, two hundred thirty-two thousand, seven".