612251443 has 4 divisors (see below), whose sum is σ = 612509688. Its totient is φ = 611993200.

The previous prime is 612251429. The next prime is 612251491. The reversal of 612251443 is 344152216.

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

It is a cyclic number.

It is not a de Polignac number, because 612251443 - 2⁵ = 612251411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612254443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125533 + ... + 130318.

It is an arithmetic number, because the mean of its divisors is an integer number (153127422).

Almost surely, 2^612251443 is an apocalyptic number.

612251443 is a deficient number, since it is larger than the sum of its proper divisors (258245).

612251443 is a wasteful number, since it uses less digits than its factorization.

612251443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258244.

The product of its digits is 5760, while the sum is 28.

The square root of 612251443 is about 24743.7152222539. The cubic root of 612251443 is about 849.1347333322.

The spelling of 612251443 in words is "six hundred twelve million, two hundred fifty-one thousand, four hundred forty-three".