662543141 has 8 divisors (see below), whose sum is σ = 713723640. Its totient is φ = 611393472.

The previous prime is 662543137. The next prime is 662543177. The reversal of 662543141 is 141345266.

It can be written as a sum of positive squares in 4 ways, for example, as 9740641 + 652802500 = 3121^2 + 25550^2 .

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 662543141 - 2² = 662543137 is a prime.

It is a super-2 number, since 2×662543141² = 877926827372291762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 662543098 and 662543107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662543131) 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, 57275 + ... + 67863.

It is an arithmetic number, because the mean of its divisors is an integer number (89215455).

Almost surely, 2^662543141 is an apocalyptic number.

It is an amenable number.

662543141 is a deficient number, since it is larger than the sum of its proper divisors (51180499).

662543141 is a wasteful number, since it uses less digits than its factorization.

662543141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15415.

The product of its digits is 17280, while the sum is 32.

The square root of 662543141 is about 25739.9133836926. The cubic root of 662543141 is about 871.7756227153.

The spelling of 662543141 in words is "six hundred sixty-two million, five hundred forty-three thousand, one hundred forty-one".