742172159 has 16 divisors (see below), whose sum is σ = 789543936. Its totient is φ = 696679200.

The previous prime is 742172149. The next prime is 742172237. The reversal of 742172159 is 951271247.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 742172159 - 2⁴ = 742172143 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 (742172149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120464 + ... + 126474.

It is an arithmetic number, because the mean of its divisors is an integer number (49346496).

Almost surely, 2^742172159 is an apocalyptic number.

742172159 is a deficient number, since it is larger than the sum of its proper divisors (47371777).

742172159 is a wasteful number, since it uses less digits than its factorization.

742172159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6166.

The product of its digits is 35280, while the sum is 38.

The square root of 742172159 is about 27242.8368383324. The cubic root of 742172159 is about 905.3883172251.

The spelling of 742172159 in words is "seven hundred forty-two million, one hundred seventy-two thousand, one hundred fifty-nine".