742136 has 8 divisors (see below), whose sum is σ = 1391520. Its totient is φ = 371064.

The previous prime is 742127. The next prime is 742151. The reversal of 742136 is 631247.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46376 + ... + 46391.

It is an arithmetic number, because the mean of its divisors is an integer number (173940).

2⁷⁴²¹³⁶ is an apocalyptic number.

It is an amenable number.

742136 is a deficient number, since it is larger than the sum of its proper divisors (649384).

742136 is a wasteful number, since it uses less digits than its factorization.

742136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92773 (or 92769 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 742136 is about 861.4731568656. The cubic root of 742136 is about 90.5373613329.

Subtracting from 742136 its reverse (631247), we obtain a square (110889 = 333²).

It can be divided in two parts, 742 and 136, that added together give a palindrome (878).

The spelling of 742136 in words is "seven hundred forty-two thousand, one hundred thirty-six".