174042139 has 2 divisors, whose sum is σ = 174042140. Its totient is φ = 174042138.

The previous prime is 174042097. The next prime is 174042151. The reversal of 174042139 is 931240471.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 174042139 - 2¹¹ = 174040091 is a prime.

It is a super-2 number, since 2×174042139² = 60581332295390642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 174042139.

It is not a weakly prime, because it can be changed into another prime (174042839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87021069 + 87021070.

It is an arithmetic number, because the mean of its divisors is an integer number (87021070).

Almost surely, 2^174042139 is an apocalyptic number.

174042139 is a deficient number, since it is larger than the sum of its proper divisors (1).

174042139 is an equidigital number, since it uses as much as digits as its factorization.

174042139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 174042139 is about 13192.5031362513. The cubic root of 174042139 is about 558.3220810286.

The spelling of 174042139 in words is "one hundred seventy-four million, forty-two thousand, one hundred thirty-nine".