142920135 has 12 divisors (see below), whose sum is σ = 247728312. Its totient is φ = 76224048.

The previous prime is 142920131. The next prime is 142920163. The reversal of 142920135 is 531029241.

142920135 is a `hidden beast` number, since 1 + 429 + 201 + 35 = 666.

It is not a de Polignac number, because 142920135 - 2² = 142920131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142920099 and 142920108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142920131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1587957 + ... + 1588046.

It is an arithmetic number, because the mean of its divisors is an integer number (20644026).

Almost surely, 2^142920135 is an apocalyptic number.

142920135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142920135 is a deficient number, since it is larger than the sum of its proper divisors (104808177).

142920135 is a wasteful number, since it uses less digits than its factorization.

142920135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176014 (or 3176011 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 142920135 is about 11954.9209533146. The cubic root of 142920135 is about 522.8347831200.

Adding to 142920135 its reverse (531029241), we get a palindrome (673949376).

The spelling of 142920135 in words is "one hundred forty-two million, nine hundred twenty thousand, one hundred thirty-five".