10662143 has 4 divisors (see below), whose sum is σ = 10772160. Its totient is φ = 10552128.

The previous prime is 10662139. The next prime is 10662149. The reversal of 10662143 is 34126601.

It is a happy number.

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 10662143 - 2² = 10662139 is a prime.

It is a super-2 number, since 2×10662143² = 227362586704898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10662149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54863 + ... + 55056.

It is an arithmetic number, because the mean of its divisors is an integer number (2693040).

Almost surely, 2^10662143 is an apocalyptic number.

10662143 is a deficient number, since it is larger than the sum of its proper divisors (110017).

10662143 is an equidigital number, since it uses as much as digits as its factorization.

10662143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110016.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 10662143 is about 3265.2937080759. The cubic root of 10662143 is about 220.0973604883.

Adding to 10662143 its reverse (34126601), we get a palindrome (44788744).

The spelling of 10662143 in words is "ten million, six hundred sixty-two thousand, one hundred forty-three".