611422143 has 8 divisors (see below), whose sum is σ = 815371008. Its totient is φ = 407544024.

The previous prime is 611422139. The next prime is 611422157. The reversal of 611422143 is 341224116.

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

It is not a de Polignac number, because 611422143 - 2² = 611422139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611422183) 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, 7680 + ... + 35802.

It is an arithmetic number, because the mean of its divisors is an integer number (101921376).

Almost surely, 2^611422143 is an apocalyptic number.

611422143 is a deficient number, since it is larger than the sum of its proper divisors (203948865).

611422143 is a wasteful number, since it uses less digits than its factorization.

611422143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35373.

The product of its digits is 1152, while the sum is 24.

The square root of 611422143 is about 24726.9517530973. The cubic root of 611422143 is about 848.7511732635.

Adding to 611422143 its reverse (341224116), we get a palindrome (952646259).

The spelling of 611422143 in words is "six hundred eleven million, four hundred twenty-two thousand, one hundred forty-three".