142277812 has 6 divisors (see below), whose sum is σ = 248986178. Its totient is φ = 71138904.

The previous prime is 142277801. The next prime is 142277819. The reversal of 142277812 is 218772241.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 92659876 + 49617936 = 9626^2 + 7044^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142277819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17784723 + ... + 17784730.

Almost surely, 2^142277812 is an apocalyptic number.

It is an amenable number.

142277812 is a deficient number, since it is larger than the sum of its proper divisors (106708366).

142277812 is a wasteful number, since it uses less digits than its factorization.

142277812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35569457 (or 35569455 counting only the distinct ones).

The product of its digits is 12544, while the sum is 34.

The square root of 142277812 is about 11928.0263245853. The cubic root of 142277812 is about 522.0503516165.

The spelling of 142277812 in words is "one hundred forty-two million, two hundred seventy-seven thousand, eight hundred twelve".