1623305353 has 2 divisors, whose sum is σ = 1623305354. Its totient is φ = 1623305352.

The previous prime is 1623305347. The next prime is 1623305357. The reversal of 1623305353 is 3535033261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1621833984 + 1471369 = 40272^2 + 1213^2 .

It is a cyclic number.

It is not a de Polignac number, because 1623305353 - 2¹³ = 1623297161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1623305357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811652676 + 811652677.

It is an arithmetic number, because the mean of its divisors is an integer number (811652677).

Almost surely, 2^1623305353 is an apocalyptic number.

It is an amenable number.

1623305353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1623305353 is an equidigital number, since it uses as much as digits as its factorization.

1623305353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 31.

The square root of 1623305353 is about 40290.2637494470. The cubic root of 1623305353 is about 1175.2585163494.

The spelling of 1623305353 in words is "one billion, six hundred twenty-three million, three hundred five thousand, three hundred fifty-three".