142145835 has 16 divisors (see below), whose sum is σ = 244928544. Its totient is φ = 69979392.

The previous prime is 142145833. The next prime is 142145867. The reversal of 142145835 is 538541241.

It is not a de Polignac number, because 142145835 - 2¹ = 142145833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142145796 and 142145805.

It is not an unprimeable number, because it can be changed into a prime (142145833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364282 + ... + 364671.

It is an arithmetic number, because the mean of its divisors is an integer number (15308034).

Almost surely, 2^142145835 is an apocalyptic number.

142145835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142145835 is a deficient number, since it is larger than the sum of its proper divisors (102782709).

142145835 is a wasteful number, since it uses less digits than its factorization.

142145835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728974.

The product of its digits is 19200, while the sum is 33.

The square root of 142145835 is about 11922.4928181987. The cubic root of 142145835 is about 521.8888835873. Note that the first 5 decimals are identical.

The spelling of 142145835 in words is "one hundred forty-two million, one hundred forty-five thousand, eight hundred thirty-five".