609142111 has 8 divisors (see below), whose sum is σ = 613209744. Its totient is φ = 605088000.

The previous prime is 609142081. The next prime is 609142123. The reversal of 609142111 is 111241906.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 609142111 - 2²⁷ = 474924383 is a prime.

It is a super-2 number, since 2×609142111² = 742108222787072642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609142151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96591 + ... + 102703.

It is an arithmetic number, because the mean of its divisors is an integer number (76651218).

Almost surely, 2^609142111 is an apocalyptic number.

609142111 is a deficient number, since it is larger than the sum of its proper divisors (4067633).

609142111 is a wasteful number, since it uses less digits than its factorization.

609142111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6761.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 609142111 is about 24680.8045047158. The cubic root of 609142111 is about 847.6948434579.

The spelling of 609142111 in words is "six hundred nine million, one hundred forty-two thousand, one hundred eleven".