612420245 has 8 divisors (see below), whose sum is σ = 744207360. Its totient is φ = 483734160.

The previous prime is 612420209. The next prime is 612420251. The reversal of 612420245 is 542024216.

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

It is not a de Polignac number, because 612420245 - 2¹⁸ = 612158101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 774821 + ... + 775610.

It is an arithmetic number, because the mean of its divisors is an integer number (93025920).

Almost surely, 2^612420245 is an apocalyptic number.

It is an amenable number.

612420245 is a deficient number, since it is larger than the sum of its proper divisors (131787115).

612420245 is a wasteful number, since it uses less digits than its factorization.

612420245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550515.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 612420245 is about 24747.1259947494. The cubic root of 612420245 is about 849.2127636208.

The spelling of 612420245 in words is "six hundred twelve million, four hundred twenty thousand, two hundred forty-five".