609734123 has 2 divisors, whose sum is σ = 609734124. Its totient is φ = 609734122.

The previous prime is 609734089. The next prime is 609734131. The reversal of 609734123 is 321437906.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 609734123 - 2¹⁴ = 609717739 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (609734183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304867061 + 304867062.

It is an arithmetic number, because the mean of its divisors is an integer number (304867062).

Almost surely, 2^609734123 is an apocalyptic number.

609734123 is a deficient number, since it is larger than the sum of its proper divisors (1).

609734123 is an equidigital number, since it uses as much as digits as its factorization.

609734123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 609734123 is about 24692.7949612837. The cubic root of 609734123 is about 847.9693732820.

The spelling of 609734123 in words is "six hundred nine million, seven hundred thirty-four thousand, one hundred twenty-three".