612233945 has 4 divisors (see below), whose sum is σ = 734680740. Its totient is φ = 489787152.

The previous prime is 612233939. The next prime is 612233953. The reversal of 612233945 is 549332216.

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 203547289 + 408686656 = 14267^2 + 20216^2 .

It is a cyclic number.

It is not a de Polignac number, because 612233945 - 2²⁶ = 545125081 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, 61223390 + ... + 61223399.

It is an arithmetic number, because the mean of its divisors is an integer number (183670185).

Almost surely, 2^612233945 is an apocalyptic number.

It is an amenable number.

612233945 is a deficient number, since it is larger than the sum of its proper divisors (122446795).

612233945 is a wasteful number, since it uses less digits than its factorization.

612233945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122446794.

The product of its digits is 38880, while the sum is 35.

The square root of 612233945 is about 24743.3616349921. The cubic root of 612233945 is about 849.1266438992.

The spelling of 612233945 in words is "six hundred twelve million, two hundred thirty-three thousand, nine hundred forty-five".