1608231451 has 2 divisors, whose sum is σ = 1608231452. Its totient is φ = 1608231450.

The previous prime is 1608231439. The next prime is 1608231463. The reversal of 1608231451 is 1541328061.

It is a balanced prime because it is at equal distance from previous prime (1608231439) and next prime (1608231463).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1608231451 is a prime.

It is not a weakly prime, because it can be changed into another prime (1608231491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804115725 + 804115726.

It is an arithmetic number, because the mean of its divisors is an integer number (804115726).

Almost surely, 2^1608231451 is an apocalyptic number.

1608231451 is the 17935-th centered decagonal number.

1608231451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1608231451 is an equidigital number, since it uses as much as digits as its factorization.

1608231451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1608231451 is about 40102.7611393530. The cubic root of 1608231451 is about 1171.6094078583.

The spelling of 1608231451 in words is "one billion, six hundred eight million, two hundred thirty-one thousand, four hundred fifty-one".