17142149 has 4 divisors (see below), whose sum is σ = 17302464. Its totient is φ = 16981836.

The previous prime is 17142143. The next prime is 17142173. The reversal of 17142149 is 94124171.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94124171 = 3719 ⋅25309.

It is a cyclic number.

It is not a de Polignac number, because 17142149 - 2⁴ = 17142133 is a prime.

It is a Duffinian number.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79997 + ... + 80210.

It is an arithmetic number, because the mean of its divisors is an integer number (4325616).

Almost surely, 2^17142149 is an apocalyptic number.

It is an amenable number.

17142149 is a deficient number, since it is larger than the sum of its proper divisors (160315).

17142149 is a wasteful number, since it uses less digits than its factorization.

17142149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160314.

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

The square root of 17142149 is about 4140.3078387965. The cubic root of 17142149 is about 257.8428474273.

The spelling of 17142149 in words is "seventeen million, one hundred forty-two thousand, one hundred forty-nine".