142402226 has 12 divisors (see below), whose sum is σ = 225438462. Its totient is φ = 67453344.

The previous prime is 142402219. The next prime is 142402229. The reversal of 142402226 is 622204241.

142402226 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 103327225 + 39075001 = 10165^2 + 6251^2 .

It is not an unprimeable number, because it can be changed into a prime (142402229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97895 + ... + 99338.

Almost surely, 2^142402226 is an apocalyptic number.

142402226 is a deficient number, since it is larger than the sum of its proper divisors (83036236).

142402226 is a wasteful number, since it uses less digits than its factorization.

142402226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197273 (or 197254 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 142402226 is about 11933.2403813885. The cubic root of 142402226 is about 522.2024752421.

Adding to 142402226 its reverse (622204241), we get a palindrome (764606467).

The spelling of 142402226 in words is "one hundred forty-two million, four hundred two thousand, two hundred twenty-six".