142000245 has 24 divisors (see below), whose sum is σ = 246445056. Its totient is φ = 75637728.

The previous prime is 142000241. The next prime is 142000273. The reversal of 142000245 is 542000241.

142000245 is a `hidden beast` number, since 1 + 420 + 0 + 0 + 245 = 666.

It is not a de Polignac number, because 142000245 - 2² = 142000241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142000241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47464 + ... + 50366.

It is an arithmetic number, because the mean of its divisors is an integer number (10268544).

Almost surely, 2^142000245 is an apocalyptic number.

142000245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142000245 is a deficient number, since it is larger than the sum of its proper divisors (104444811).

142000245 is a wasteful number, since it uses less digits than its factorization.

142000245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4001 (or 3998 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 142000245 is about 11916.3855677802. The cubic root of 142000245 is about 521.7106446721.

Adding to 142000245 its reverse (542000241), we get a palindrome (684000486).

The spelling of 142000245 in words is "one hundred forty-two million, two hundred forty-five", and thus it is an aban number.