142223552 has 14 divisors (see below), whose sum is σ = 282224988. Its totient is φ = 71111744.

The previous prime is 142223507. The next prime is 142223561. The reversal of 142223552 is 255322241.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111058 + ... + 1111185.

Almost surely, 2^142223552 is an apocalyptic number.

It is an amenable number.

142223552 is a deficient number, since it is larger than the sum of its proper divisors (140001436).

142223552 is an equidigital number, since it uses as much as digits as its factorization.

142223552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222255 (or 2222245 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 142223552 is about 11925.7516324968. The cubic root of 142223552 is about 521.9839789958.

Adding to 142223552 its reverse (255322241), we get a palindrome (397545793).

The spelling of 142223552 in words is "one hundred forty-two million, two hundred twenty-three thousand, five hundred fifty-two".