742166 has 4 divisors (see below), whose sum is σ = 1113252. Its totient is φ = 371082.

The previous prime is 742153. The next prime is 742193. The reversal of 742166 is 661247.

742166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 661247 = 101 ⋅6547.

It is a congruent number.

It is an unprimeable number.

742166 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185540 + ... + 185543.

It is an arithmetic number, because the mean of its divisors is an integer number (278313).

2⁷⁴²¹⁶⁶ is an apocalyptic number.

742166 is a deficient number, since it is larger than the sum of its proper divisors (371086).

742166 is a wasteful number, since it uses less digits than its factorization.

742166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371085.

The product of its digits is 2016, while the sum is 26.

The square root of 742166 is about 861.4905687238. The cubic root of 742166 is about 90.5385812729.

The spelling of 742166 in words is "seven hundred forty-two thousand, one hundred sixty-six".