17142140 has 12 divisors (see below), whose sum is σ = 35998536. Its totient is φ = 6856848.

The previous prime is 17142133. The next prime is 17142143. The reversal of 17142140 is 4124171.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 857107 = 17142140 / (1 + 7 + 1 + 4 + 2 + 1 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17142143) by changing a digit.

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, 428534 + ... + 428573.

It is an arithmetic number, because the mean of its divisors is an integer number (2999878).

Almost surely, 2^17142140 is an apocalyptic number.

17142140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17142140 is an abundant number, since it is smaller than the sum of its proper divisors (18856396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17142140 is a wasteful number, since it uses less digits than its factorization.

17142140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857116 (or 857114 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 17142140 is about 4140.3067519207. The cubic root of 17142140 is about 257.8428023030.

The spelling of 17142140 in words is "seventeen million, one hundred forty-two thousand, one hundred forty".