612163345 has 4 divisors (see below), whose sum is σ = 734596020. Its totient is φ = 489730672.

The previous prime is 612163313. The next prime is 612163369. The reversal of 612163345 is 543361216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 327465216 + 284698129 = 18096^2 + 16873^2 .

It is a cyclic number.

It is not a de Polignac number, because 612163345 - 2⁵ = 612163313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61216330 + ... + 61216339.

It is an arithmetic number, because the mean of its divisors is an integer number (183649005).

Almost surely, 2^612163345 is an apocalyptic number.

It is an amenable number.

612163345 is a deficient number, since it is larger than the sum of its proper divisors (122432675).

612163345 is a wasteful number, since it uses less digits than its factorization.

612163345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122432674.

The product of its digits is 12960, while the sum is 31.

The square root of 612163345 is about 24741.9349485848. The cubic root of 612163345 is about 849.0940035193.

The spelling of 612163345 in words is "six hundred twelve million, one hundred sixty-three thousand, three hundred forty-five".