142120230 has 32 divisors (see below), whose sum is σ = 389816064. Its totient is φ = 32484576.

The previous prime is 142120217. The next prime is 142120241. The reversal of 142120230 is 32021241.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338172 + ... + 338591.

It is an arithmetic number, because the mean of its divisors is an integer number (12181752).

Almost surely, 2^142120230 is an apocalyptic number.

142120230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142120230 is an abundant number, since it is smaller than the sum of its proper divisors (247695834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142120230 is a wasteful number, since it uses less digits than its factorization.

142120230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676780.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 142120230 is about 11921.4189591676. The cubic root of 142120230 is about 521.8575454260.

Adding to 142120230 its reverse (32021241), we get a palindrome (174141471).

The spelling of 142120230 in words is "one hundred forty-two million, one hundred twenty thousand, two hundred thirty".