142191276 has 12 divisors (see below), whose sum is σ = 331779672. Its totient is φ = 47397088.

The previous prime is 142191229. The next prime is 142191277. The reversal of 142191276 is 672191241.

It is a happy number.

142191276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (142191277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5924625 + ... + 5924648.

It is an arithmetic number, because the mean of its divisors is an integer number (27648306).

Almost surely, 2^142191276 is an apocalyptic number.

It is an amenable number.

142191276 is an abundant number, since it is smaller than the sum of its proper divisors (189588396).

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

142191276 is a wasteful number, since it uses less digits than its factorization.

142191276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11849280 (or 11849278 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 142191276 is about 11924.3983496024. The cubic root of 142191276 is about 521.9444899208.

The spelling of 142191276 in words is "one hundred forty-two million, one hundred ninety-one thousand, two hundred seventy-six".