612145275 has 24 divisors (see below), whose sum is σ = 1156664064. Its totient is φ = 279837600.

The previous prime is 612145273. The next prime is 612145327. The reversal of 612145275 is 572541216.

It is not a de Polignac number, because 612145275 - 2¹ = 612145273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (612145271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 582471 + ... + 583520.

It is an arithmetic number, because the mean of its divisors is an integer number (48194336).

Almost surely, 2^612145275 is an apocalyptic number.

612145275 is a deficient number, since it is larger than the sum of its proper divisors (544518789).

612145275 is a wasteful number, since it uses less digits than its factorization.

612145275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166011 (or 1166006 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 612145275 is about 24741.5697763905. The cubic root of 612145275 is about 849.0856488431.

The spelling of 612145275 in words is "six hundred twelve million, one hundred forty-five thousand, two hundred seventy-five".