612143 has 8 divisors (see below), whose sum is σ = 705312. Its totient is φ = 520416.

The previous prime is 612137. The next prime is 612149. The reversal of 612143 is 341216.

It is an interprime number because it is at equal distance from previous prime (612137) and next prime (612149).

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

It is a cyclic number.

It is not a de Polignac number, because 612143 - 2⁸ = 611887 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 612143.

It is not an unprimeable number, because it can be changed into a prime (612149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821 + ... + 1377.

It is an arithmetic number, because the mean of its divisors is an integer number (88164).

2⁶¹²¹⁴³ is an apocalyptic number.

612143 is a deficient number, since it is larger than the sum of its proper divisors (93169).

612143 is a wasteful number, since it uses less digits than its factorization.

612143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721.

The product of its digits is 144, while the sum is 17.

The square root of 612143 is about 782.3956799472. The cubic root of 612143 is about 84.9084596984.

Adding to 612143 its reverse (341216), we get a palindrome (953359).

The spelling of 612143 in words is "six hundred twelve thousand, one hundred forty-three".