142149170 has 8 divisors (see below), whose sum is σ = 255868524. Its totient is φ = 56859664.

The previous prime is 142149169. The next prime is 142149191. The reversal of 142149170 is 71941241.

It can be written as a sum of positive squares in 2 ways, for example, as 124567921 + 17581249 = 11161^2 + 4193^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7107449 + ... + 7107468.

Almost surely, 2^142149170 is an apocalyptic number.

142149170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142149170 is a deficient number, since it is larger than the sum of its proper divisors (113719354).

142149170 is a wasteful number, since it uses less digits than its factorization.

142149170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14214924.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 142149170 is about 11922.6326790688. The cubic root of 142149170 is about 521.8929650431.

The spelling of 142149170 in words is "one hundred forty-two million, one hundred forty-nine thousand, one hundred seventy".