142225340 has 24 divisors (see below), whose sum is σ = 299747952. Its totient is φ = 56685440.

The previous prime is 142225333. The next prime is 142225357. The reversal of 142225340 is 43522241.

It is a happy 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, 7034 + ... + 18273.

It is an arithmetic number, because the mean of its divisors is an integer number (12489498).

Almost surely, 2^142225340 is an apocalyptic number.

142225340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142225340 is an abundant number, since it is smaller than the sum of its proper divisors (157522612).

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

142225340 is a wasteful number, since it uses less digits than its factorization.

142225340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25597 (or 25595 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 142225340 is about 11925.8265960897. The cubic root of 142225340 is about 521.9861664053.

Adding to 142225340 its reverse (43522241), we get a palindrome (185747581).

It can be divided in two parts, 1422 and 25340, that added together give a palindrome (26762).

The spelling of 142225340 in words is "one hundred forty-two million, two hundred twenty-five thousand, three hundred forty".