1813213607 has 2 divisors, whose sum is σ = 1813213608. Its totient is φ = 1813213606.

The previous prime is 1813213559. The next prime is 1813213613. The reversal of 1813213607 is 7063123181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1813213607 - 2⁶ = 1813213543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1813213627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 906606803 + 906606804.

It is an arithmetic number, because the mean of its divisors is an integer number (906606804).

Almost surely, 2^1813213607 is an apocalyptic number.

1813213607 is a deficient number, since it is larger than the sum of its proper divisors (1).

1813213607 is an equidigital number, since it uses as much as digits as its factorization.

1813213607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1813213607 is about 42581.8459792433. The cubic root of 1813213607 is about 1219.4097312548.

Adding to 1813213607 its reverse (7063123181), we get a palindrome (8876336788).

The spelling of 1813213607 in words is "one billion, eight hundred thirteen million, two hundred thirteen thousand, six hundred seven".