142214787 has 24 divisors (see below), whose sum is σ = 241336368. Its totient is φ = 79560000.

The previous prime is 142214783. The next prime is 142214789. The reversal of 142214787 is 787412241.

It is not a de Polignac number, because 142214787 - 2² = 142214783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142214783) 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 23 ways as a sum of consecutive naturals, for example, 53964 + ... + 56537.

It is an arithmetic number, because the mean of its divisors is an integer number (10055682).

Almost surely, 2^142214787 is an apocalyptic number.

142214787 is a deficient number, since it is larger than the sum of its proper divisors (99121581).

142214787 is a wasteful number, since it uses less digits than its factorization.

142214787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110531 (or 110528 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 142214787 is about 11925.3841447561. The cubic root of 142214787 is about 521.9732557752.

The spelling of 142214787 in words is "one hundred forty-two million, two hundred fourteen thousand, seven hundred eighty-seven".