142225808 has 40 divisors (see below), whose sum is σ = 292590648. Its totient is φ = 66742272.

The previous prime is 142225801. The next prime is 142225819. The reversal of 142225808 is 808522241.

It can be written as a sum of positive squares in 4 ways, for example, as 1281424 + 140944384 = 1132^2 + 11872^2 .

It is a super-2 number, since 2×142225808² = 40456360922505728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142225801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166310 + ... + 167162.

Almost surely, 2^142225808 is an apocalyptic number.

It is an amenable number.

142225808 is an abundant number, since it is smaller than the sum of its proper divisors (150364840).

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

142225808 is a wasteful number, since it uses less digits than its factorization.

142225808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491 (or 1485 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 142225808 is about 11925.8462173550. The cubic root of 142225808 is about 521.9867389457.

The spelling of 142225808 in words is "one hundred forty-two million, two hundred twenty-five thousand, eight hundred eight".