142223030 has 16 divisors (see below), whose sum is σ = 267132384. Its totient is φ = 54415680.

The previous prime is 142223027. The next prime is 142223057. The reversal of 142223030 is 30322241.

142223030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308951 + ... + 309410.

It is an arithmetic number, because the mean of its divisors is an integer number (16695774).

Almost surely, 2^142223030 is an apocalyptic number.

142223030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142223030 is a deficient number, since it is larger than the sum of its proper divisors (124909354).

142223030 is a wasteful number, since it uses less digits than its factorization.

142223030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618391.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 142223030 is about 11925.7297470637. The cubic root of 142223030 is about 521.9833403862.

Adding to 142223030 its reverse (30322241), we get a palindrome (172545271).

The spelling of 142223030 in words is "one hundred forty-two million, two hundred twenty-three thousand, thirty".