1613359123 has 2 divisors, whose sum is σ = 1613359124. Its totient is φ = 1613359122.

The previous prime is 1613359091. The next prime is 1613359157. The reversal of 1613359123 is 3219533161.

It is a happy number.

It is an a-pointer prime, because the next prime (1613359157) can be obtained adding 1613359123 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1613359123 - 2⁵ = 1613359091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1613354123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806679561 + 806679562.

It is an arithmetic number, because the mean of its divisors is an integer number (806679562).

Almost surely, 2^1613359123 is an apocalyptic number.

1613359123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1613359123 is an equidigital number, since it uses as much as digits as its factorization.

1613359123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 34.

The square root of 1613359123 is about 40166.6419183879. The cubic root of 1613359123 is about 1172.8532701034.

The spelling of 1613359123 in words is "one billion, six hundred thirteen million, three hundred fifty-nine thousand, one hundred twenty-three".