142149835 has 16 divisors (see below), whose sum is σ = 182908800. Its totient is φ = 105670656.

The previous prime is 142149823. The next prime is 142149853. The reversal of 142149835 is 538941241.

It is a cyclic number.

It is not a de Polignac number, because 142149835 - 2¹⁵ = 142117067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142149794 and 142149803.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3870 + ... + 17299.

It is an arithmetic number, because the mean of its divisors is an integer number (11431800).

Almost surely, 2^142149835 is an apocalyptic number.

142149835 is a deficient number, since it is larger than the sum of its proper divisors (40758965).

142149835 is a wasteful number, since it uses less digits than its factorization.

142149835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21270.

The product of its digits is 34560, while the sum is 37.

The square root of 142149835 is about 11922.6605671721. The cubic root of 142149835 is about 521.8937788789.

The spelling of 142149835 in words is "one hundred forty-two million, one hundred forty-nine thousand, eight hundred thirty-five".