674242143 has 4 divisors (see below), whose sum is σ = 898989528. Its totient is φ = 449494760.

The previous prime is 674242139. The next prime is 674242201. The reversal of 674242143 is 341242476.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 674242143 - 2² = 674242139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674242103) 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, 112373688 + ... + 112373693.

It is an arithmetic number, because the mean of its divisors is an integer number (224747382).

Almost surely, 2^674242143 is an apocalyptic number.

674242143 is a deficient number, since it is larger than the sum of its proper divisors (224747385).

674242143 is a wasteful number, since it uses less digits than its factorization.

674242143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224747384.

The product of its digits is 32256, while the sum is 33.

The square root of 674242143 is about 25966.1730526468. The cubic root of 674242143 is about 876.8769041064.

The spelling of 674242143 in words is "six hundred seventy-four million, two hundred forty-two thousand, one hundred forty-three".