143214621 has 16 divisors (see below), whose sum is σ = 209471808. Its totient is φ = 86313600.

The previous prime is 143214607. The next prime is 143214661. The reversal of 143214621 is 126412341.

It is not a de Polignac number, because 143214621 - 2⁷ = 143214493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143214591 and 143214600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143214601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6016 + ... + 17961.

It is an arithmetic number, because the mean of its divisors is an integer number (13091988).

Almost surely, 2^143214621 is an apocalyptic number.

143214621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

143214621 is a deficient number, since it is larger than the sum of its proper divisors (66257187).

143214621 is a wasteful number, since it uses less digits than its factorization.

143214621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24172.

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

The square root of 143214621 is about 11967.2311333909. The cubic root of 143214621 is about 523.1936359743.

Adding to 143214621 its reverse (126412341), we get a palindrome (269626962).

The spelling of 143214621 in words is "one hundred forty-three million, two hundred fourteen thousand, six hundred twenty-one".