612610161 has 8 divisors (see below), whose sum is σ = 827153280. Its totient is φ = 403236912.

The previous prime is 612610111. The next prime is 612610169. The reversal of 612610161 is 161016216.

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

It is not a de Polignac number, because 612610161 - 2¹⁵ = 612577393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (612610169) 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, 1292190 + ... + 1292663.

It is an arithmetic number, because the mean of its divisors is an integer number (103394160).

Almost surely, 2^612610161 is an apocalyptic number.

It is an amenable number.

612610161 is a deficient number, since it is larger than the sum of its proper divisors (214543119).

612610161 is a wasteful number, since it uses less digits than its factorization.

612610161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584935.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 612610161 is about 24750.9628297567. The cubic root of 612610161 is about 849.3005369127.

Adding to 612610161 its reverse (161016216), we get a palindrome (773626377).

The spelling of 612610161 in words is "six hundred twelve million, six hundred ten thousand, one hundred sixty-one".