1611364231 has 2 divisors, whose sum is σ = 1611364232. Its totient is φ = 1611364230.

The previous prime is 1611364229. The next prime is 1611364301. The reversal of 1611364231 is 1324631161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1611364231 - 2¹ = 1611364229 is a prime.

It is a super-2 number, since 2×1611364231² = 5192989369892442722, which contains 22 as substring.

Together with 1611364229, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1611364231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1611364211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805682115 + 805682116.

It is an arithmetic number, because the mean of its divisors is an integer number (805682116).

Almost surely, 2^1611364231 is an apocalyptic number.

1611364231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1611364231 is an equidigital number, since it uses as much as digits as its factorization.

1611364231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 1611364231 is about 40141.8015415352. The cubic root of 1611364231 is about 1172.3696661380.

Adding to 1611364231 its reverse (1324631161), we get a palindrome (2935995392).

The spelling of 1611364231 in words is "one billion, six hundred eleven million, three hundred sixty-four thousand, two hundred thirty-one".